Synthesis, structural characterization" and reactivity of a bis(phosphine)(silyl) platinum(II) complex

Article abstract of DOI:10.1080/00958972.2015.1099635

Treatment of 1,2-C₆H₄(SiMe₂H)(SiH₃) (1) with Pt(dcpe)(PEt₃)₂ (dcpe = Cy₂PCH₂CH₂PCy₂) in dry toluene at room temperature in the ratio of 1: 1 lead

Full text of DOI:10.1080/00958972.2015.1099635

Journal of Coordination Chemistry
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Synthesis, structural characterization‚ and
reactivity of a bis(phosphine)(silyl) platinum(II)
complex
Wen-Jin Zeng, Shi Wang, Bao-Xiu Mi, Jun-Feng Li, Wen-Yong Lai, Yong-Hua Li,
Lian-Hui Wang & Wei Huang
To cite this article: Wen-Jin Zeng, Shi Wang, Bao-Xiu Mi, Jun-Feng Li, Wen-Yong Lai, Yong-Hua
Li, Lian-Hui Wang & Wei Huang (2015): Synthesis, structural characterization‚ and reactivity
of a bis(phosphine)(silyl) platinum(II) complex, Journal of Coordination Chemistry, DOI:
10.1080/00958972.2015.1099635
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Date: 01 November 2015, At: 01:52

Journal of Coordination Chemistry, 2015
http://dx.doi.org/10.1080/00958972.2015.1099635
Synthesis, structural characterization‚ and reactivity of a bis
(phosphine)(silyl) platinum(II) complex
WEN-JIN ZENG, SHI WANG*, BAO-XIU MI, JUN-FENG LI, WEN-YONG LAI,
YONG-HUA LI*, LIAN-HUI WANG and WEI HUANG
Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
(IAM), National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University
of Posts & Telecommunications, Nanjing, China
(Received 28 May 2015; accepted 3 September 2015)
Treatment of 1,2-C6H4(SiMe2H)(SiH3) (1) with Pt(dcpe)(PEt3)2 (dcpe = Cy2PCH2CH2PCy2) in dry
toluene at room temperature in the ratio of 1 : 1 leads to {1,2-C6H4(SiMe2)(SiH2)}PtII(dcpe) (2),
which can react with sterically unhindered alcohol to form a dimethoxy substituted silyl platinum(II)
compound (3). There are only five examples of bis(silyl) platinum(II) complexes prepared from this
silyl ligand with such structural features registered in the Cambridge Structural Database. The struc-
tures of 2 and 3 were unambiguously determined by single-crystal X-ray analysis and multinuclear
NMR spectroscopic studies.
Keywords: Chelating; Silyl; Platinum
*Corresponding authors. Email: iamswang@njupt.edu.cn (S. Wang); iamyhli@njupt.edu.cn (Y.-H. Li)
© 2015 Taylor & Francis

2
W.-J. Zeng et al.
1. Introduction
The chemistry of transition metal complexes with metal–silicon bonds has rapidly grown
and research continues to prosper in this area since the first complex containing Si–M bond
was synthesized by Wilkinson and co-workers in 1956 [1]. The most widely employed
approach to formation of complexes that contain a silicon–transition metal bond involves
the activation of the Si–H bond by low-valent transition metal complexes [2]. Hydrosilanes
are used as versatile coreactants in synthetic organosilicon chemistry. Since organohydrosi-
lanes (including RSiH3, R2SiH2, and R3SiH) may contain one, two, or three SiH bonds as
primary, secondary, and tertiary silanes, respectively, there are many product variations
upon their reaction with transition metal complexes including mononuclear, dinuclear, or
trinuclear frameworks and different valency [3].
Our present research focuses on the preparation of transition metal complexes containing
metal–silicon bonds with novel structure motifs using sterically less-demanding chelating
silyl ligands, study of the unique structural properties, and thermal stability for the silyl–
metal complexes formed by Si–H activation. We have been studying the stoichiometric
reactions of 1,2-disilylbenzenes with group 10 transition metal complexes and disclosed the
formation of unique complexes with silicon–metal bonds depending on the metals, the
structures of 1,2-disilylbenzenes, and the ligands [4].
Silyl platinum complexes have been the most extensively studied. This is not only
because platinum compounds generally have higher stability than the corresponding palla-
dium and nickel complexes but also because platinum complexes are the most widely used
catalysts for transformations of organosilicon compounds since the discovery of Speier’s
catalyst [5]. Herein, we report the reaction of 1-(dimethylsilyl)-2-silylbenzene (1) with Pt
(dcpe)(PEt3)2 (dcpe = Cy2PCH2CH2PCy2) to afford a mononuclear bis(silyl)platinum(II)
Scheme 1. The reaction of the parent chelating silane, 1,2-C6H4(SiMe2H)(SiH3) (1) with Pt(dcpe)(PEt3)2
(dcpe = Cy2PCH2CH2PCy2) in the ratio of 1 : 1, leading to a mononuclear complex {1, 2-C6H4(SiMe2)(SiH2)}
PtII(dcpe) (2).
Scheme 2. The reaction of 2 with methanol affords a dimethoxy substituted silyl platinum(II) compound 3.

Bis(phosphine)(silyl) platinum(II)
3
complex, 2, exclusively, and no further reaction of 2 with a second molecule of 1 takes
place (scheme 1). Moreover, 2 has high reactivity toward sterically unhindered alcohol to
form a di-alkoxy substituted silyl platinum(II) compound (3) (scheme 2). The structures of
2 and 3 were unambiguously determined by single-crystal X-ray analysis and multinuclear
NMR spectroscopic studies.
2. Experimental
2.1. Materials and equipment
1H, 29Si, and 31P NMR spectra were recorded on a Jeol LA500 (for solution NMR). Chemi-
cal shifts are given in ppm using external references (for solution NMR spectra, tetram-
1
ethylsilane (0 ppm) for H and 29Si and 85% H3PO4 (0 ppm) for 31P); coupling constants
are reported in Hertz. C, H, and N analyses were taken on a Perkin–Elmer 240C elemental
analyzer. All reagents and solvents were of reagent-grade quality obtained from commercial
suppliers. All solvents were dried and distilled from Na/benzophenone ketyl. The solvents
were stored over molecular sieves (4 Å). All manipulations of air-sensitive materials were
carried out under a nitrogen atmosphere using standard Schlenk tube techniques or in a
glove box. 1,2-Bis(dicyclohexylphosphino)ethane (Aldrich) was used as received. Pt(PEt3)4
and hydrosilane 1,2-C6H4(SiMe2H)(SiH3) were prepared according to the relevant literature
method [4(b), 6].
2.2. Synthesis
2.2.1. Preparation of 1-(dimethylsilyl)-2-silylbenzene (1). To a solution of phenyltris(N,
N,N′-trimethylethylenediamino)-silane (48 g) in hexane (250 mL) was added a pentane
t
solution of BuLi (1.53 M, 217 mL) over 40 min at 0 °C under nitrogen. After stirring at
room temperature for 3 h, the solution was added by using a polyethylene tube to a solution
of Me2SiCl2 (195 g) in hexane (120 mL) at 0 °C over 40 min. After the addition was com-
pleted, the mixture was allowed to warm to room temperature and then heated at 50 °C for
4 h. Solvents and excess of Me2SiCl2 were removed under reduced pressure at room tem-
i
perature. After the addition of Me2SiCl2 (20 mL) to the residue, PrOH (300 mL) was added
dropwise at 0 °C. The mixture was stirred at room temperature for 12 h. Volatiles were
removed under vacuum, hexane (600 mL) was added, and the mixture was filtered through
Celite. The filtrate was further filtered through a short pad of SiO2 (50 g) to remove the
remaining salt. After evaporation, the residue was subjected to bulb-to-bulb distillation to
give 34 g (75%) of 1-dimethyl(isopropoxy)silyl-2(triisopropoxysilyl)benzene (oven temper-
1
ature 150 °C/1 mm Hg). H NMR (CDCl3, 300 MHz) δ 0.51 (6H, s), 1.23 (18H, d), 1.26
(6H, d), 4.11 (1H, septet), 4.26 (3H, septet), 7.35–7.45 (2H, m), 7.82–7.85 (1H, m),
7.97–8.05 (1H, m).
To an ether suspension (100 mL) of LiAlH4 (10 g) was added dropwise a solution of 1-
dimethyl(isopropoxy)silyl-2-(triisopropoxysilyl)benzene (34 g) in ether 80 mL at 0 °C over
40 min. The mixture was stirred for 5 h at room temperature and 7 h at reflux. GC-MS
analysis of the mixture at this stage showed the presence of partially reduced products.
Then, LiAlH4 (1.5 g) was added, and the mixture was refluxed for another 13 h. After the

4
W.-J. Zeng et al.
removal of ether under reduced pressure, the remaining mixture was extracted with hexane
(250 mL × 3) and then filtered through Celite. Hexane was removed under reduced pres-
sure; the product was transferred to a cold flask under high vacuum. Purification by distilla-
1
tion gave 9.6 g of 1-(dimethylsilyl)-2-silyl-benzene, 134 °C/50 Torr, as colorless liquid. H
NMR (CDCl3, 300 MHz) δ 0.39 (6H, d), 4.32 (3H, s), 4.66 (1H, septet), 7.35–7.45 (1H,
m), 7.32–7.45 (1H, m), 7.59 (1H, dd), 7.68 (1H, dd); 13C NMR (CDCl3, 300 MHz) δ
−3.27, 128.57, 129.29, 134.22, 135.40, 137.51, and 138.24.
2.2.2. Preparation of {1, 2-C6H4(SiMe2)(SiH2)}PtII(dcpe) (2). A mixture of Pt(PEt3)4
(216 mg, 0.32 mmol) and dcpe (135 mg, 0.32 mmol) in toluene (4 mL) was stirred at room
temperature for 40 min to give Pt(PEt3)2(dcpe). After the removal of volatiles under vac-
uum, the residue was dissolved in toluene (4 mL). To this solution was added hydrosilane
(1, 53 mg, 0.32 mmol) at 0 °C, and the mixture was stirred at 0 °C for 12 h and then at
room temperature for 24 h. Removal of volatiles under vacuum afforded a light yellow resi-
due, which was washed with hexane (2 mL × 3) and dried under vacuum to give 2 as a col-
2
orless solid, 190 mg (76%). 31P{1H} NMR (THF-d8, 202.0 MHz): for 2, δ 73.92 (d, JP-
1
2
1
1
P = 16 Hz, JPt-P = 1364 Hz), 76.59 (d, JP-P = 16 Hz, JPt-P = 1710 Hz). H NMR (THF-d8,
499.1 MHz): for 2, δ 0.51 (dd, 6H, Si–CH3), 1.15–1.92 (m, 48H, Cy2PCH2CH2PCy2),
5.54–5.62 (m, 2H, SiH2), 7.03–7.10 (m, 2H, aromatic-H), 7.47 (d, 1H, aromatic-H), 7.59
(d, 1H, aromatic-H). 29Si{1H} NMR (THF-d8, 99.1 MHz, DEPT): for 2, δ −13.67 (dd, JP-
2
Si = 146 Hz, JP-Si = 14 Hz, JPt-Si = 1098 Hz, SiH2). 29Si{1H} NMR (THF-d8, 99.1 MHz,
2
1
2
2
1
INEPT): for 2, δ 25.51 (dd, JP-Si = 145 Hz, JP-Si = 10 Hz, JPt-Si = 1012 Hz, SiMe2). Anal.
Calcd for C34H60P2PtSi2 (%): C, 52.22; H, 7.73. Found: C, 52.61; H, 8.09.
2.2.3. Preparation of {1,2-C6H4(SiMe2)Si(OCH3)2}PtII(dcpe) (3). In a Schlenk tube
equipped with a magnetic stir bar, {1,2-C6H4(SiMe2)(SiH2)}PtII(dcpe) (391 mg, 0.5 mmol)
and dry methanol (6 mL) were placed. The mixture was stirred at room temperature for 3 h
under nitrogen and then stirred at 60 °C for 10 h. Removal of volatiles under vacuum
afforded a light yellow residue, which was washed with hexane (2 mL × 3) and dried under
vacuum to give 3 as a colorless solid, 286 mg (68%). 31P{1H} NMR (C6D6, 202.0 MHz):
2
1
2
1
for 3, δ 72.92 (d, JP-P = 14 Hz, JPt-P = 1441 Hz), 74.92 (d, JP-P = 14 Hz, JPt-
1
P = 1411 Hz). H NMR (C6D6, 499.1 MHz): for 3, δ 0.93 (dd, 6H, Si–CH3), 1.12–1.69 (m,
48H, Cy2PCH2CH2PCy2), 3.69 (s, 6H, Si–OCH3), 7.41 (t, 1H, aromatic-H), 7.48 (t, 1H,
aromatic-H), 8.03 (d, 1H, aromatic-H), 8.11 (d, 1H, aromatic-H). 29Si{1H} NMR (C6D6,
2
2
1
99.1 MHz): for 3, δ 27.58 (dd, JP-Si = 139 Hz, JP-Si = 10 Hz, JPt-Si = 1148 Hz, SiMe2),
2
2
1
48.30 (dd, JP-Si = 189 Hz, JP-Si = 11 Hz, JPt-Si = 1523 Hz, Si(OMe)2). Anal. Calcd for
C36H64O2P2PtSi2 (%): C, 51.35; H, 7.66. Found: C, 51.76; H, 7.97.
2.3. X-ray crystallography
The diffraction data were collected at 293 K on a Bruker Smart APEX CCD diffractometer
with Mo-Kα radiation (λ = 0.71073 Å), and data reduction was performed using Bruker
SAINT. An absorption correction was applied using the method of multi-scans. The struc-
ture was solved using direct methods, which yielded the positions of all non-hydrogen
atoms. These were refined first isotropically and then anisotropically. All hydrogens were
placed in calculated positions with fixed isotropic thermal parameters and included in

Bis(phosphine)(silyl) platinum(II)
Table 1. Crystallographic data for 2 and 3.
5
Compound
2
3
Formula
Formula weight
Crystal color
Crystal shape
Crystal system
Space group
a (Å)
C36H65OP2PtSi2
827.09
Colorless
Block
Monoclinic
C 2/c
27.279(6)
17.861(4)
18.006(4)
119.30(3)
7650(3)
8
C36H64O2P2PtSi2
842.07
Colorless
Block
Orthorhombic
P 21 21 21
11.354(2)
17.186(3)
19.387(4)
90.00
b (Å)
c (Å)
β (°)
Volume (Å3)
Z
3783(1)
4
T (K)
293
1.436
3.840
736
293
1.479
3.887
324
Dx (Mg m−3
)
µ (mm−1
F(000)
)
θ range for data collection (°) 1.71–27.49
1.58–25.00
Index ranges
−35 ≤ h ≤ 35, −23 ≤ k ≤ 23, −23 ≤ l ≤ 23 −13 ≤ h ≤ 13, −20 ≤ k ≤ 20, −23 ≤ l ≤ 23
Measured reflections
Independent reflections
Data/restraints/parameters
Rint
38277
8752
8752/0/390
0.094
31763
6660
6660/3/391
0.041
Reflections with I > 2σ(I)
R1 [I > 2σ(I)]
7419
0.033
6181
0.020
wR2 (all data)
0.081
0.047
Table 2. Selected bond lengths (Å) and angles (°) for 2 and 3.
Selected bond lengths for 2 Selected bond lengths for 3
Pt1–P1
Pt1–Si2
Si1–C8
Si1–C1
Si1–H1
P1–C9
2.319(1)
2.338(1)
1.895(4)
1.907(4)
1.440(4)
1.841(3)
Pt1–P2
Pt1–Si1
Si1–C7
Si2–C6
C1–C6
C11–H17
2.321(1)
2.370(1)
1.901(4)
1.892(3)
1.401(5)
0.9800
Pt1–P2
Pt1–Si2
Si1–C8
Si2–O2
Si2–O1
P1–C19
2.331(1)
2.331(1)
1.868(4)
1.693(3)
1.662(3)
1.844(4)
Pt1–P1
Pt1–Si1
Si1–C7
Si2–C8
O1–C9
C13–C14
2.332(1)
2.362(1)
1.913(5)
1.892(3)
1.409(6)
1.521(6)
Selected bond angles for 2
P2–Pt1–Si2
Si2–Pt1–P1
Si2–Pt1–Si1
C8–Si1–Pt1
93.32(4)
178.25(3)
83.02(4)
117.69(12)
102.7(16)
118.2(3)
P2–Pt1–P1
P2–Pt1–Si1
C8–Si1–C7
C6–Si2–Pt1
Pt2–Si2–H1
C9–P1–C11
86.45(4)
176.24(3)
102.01(17)
112.53(12)
114.9(15)
103.76(17)
C6–Si2–H1
C6–C1–C2
Selected bond angles for 3
P2–Pt1–Si2
Si2–Pt1–P1
Si2–Pt1–Si1
C2–C1–Si1
94.59(4)
173.86(4)
82.57(5)
123.9(4)
121.16(16)
119.6(4)
P2–Pt1–P1
P2–Pt1–Si1
Si1–Pt1–P1
C8–Si1–C7
O2–Si2–O1
C10–O2–Si2
85.93(4)
172.18(4)
97.67(4)
104.6(2)
100.49(17)
117.7(3)
C8–Si1–Pt1
C6–C1–C2
structure factor calculations in the final stage of full-matrix least-squares refinement. All
calculations were performed using SHELXTL [7]. The bis(silyl) platinum(II) complexes
were relatively more stable than the corresponding silyl nickel and palladium compounds

6
W.-J. Zeng et al.
during data collection at room temperature. The crystallographic data are summarized in
table 1, and selected geometric parameters are listed in table 2.
3. Results and discussion
We have studied the reaction of a chelating hydrosilane, 1,2-bis(silyl)benzene, which has a
trihydrosilyl group, with group 10 transition metal complexes. Silane 1, 1-(dimethylsilyl)-2-
silylbenzene, which has relatively high reactivity toward transition metals, can react with Pt
(dcpe)(PEt3)2 (dcpe = Cy2PCH2CH2PCy2) in dry toluene at room temperature in the ratio of
1 : 1 to afford the bis(silyl)platinum(II) complex, 2, bearing a chelating dcpe exclusively
(scheme 1). The whole reaction process underwent successive oxidative addition of the
Si–H bond to the Pt(0) center and dissociation of PEt3 molecules accompanying the reduc-
tive elimination of dihydrogen. Most similar mononuclear bis(silyl) platinum(II) complexes
bearing organophosphorus ligands with low steric hindrance reported previously are ther-
mally unstable and can easily be converted to the corresponding dinuclear platinum com-
plexes with the bridging silylene by intermolecular dimerization even at room temperature.
The mononuclear bis(silyl) platinum(II) complexes bearing
a
chelating dmpe
(dmpe = Me2PCH2CH2PMe2) or depe (depe = Et2PCH2CH2PEt2) prepared from this chelat-
ing disilyl ligand are difficult to be trapped as crystals because of their unstability. However,
the increased steric hinderance of the cyclohexyl groups plays an important role in the sta-
bility of 2 and 2 can be easily trapped by recrystallization in suitable solvent. Heating 2 in
THF-d8 at elevated temperature did not result in intermolecular dehydrogenative dimeriza-
tion and no new peaks could be observed judging from the 31P NMR spectrum, probably
due to the high coordination ability of the aliphatic alkylphosphine dcpe with chelating
structure to the platinum center and large steric hindrance resulted from cyclohexyl groups
on phosphorus. In addition, no further reaction of 2 with a second molecule of 1 takes place
which can be mainly attributed to the steric repulsion caused by methyl groups on silicon
and cyclohexyl groups on phosphorus. However, 2 has high reactivity toward sterically
unhindered alcohols. Treatment of 2 with methanol gives a dimethoxy substituted silyl plat-
inum(II) compound, 3 (scheme 2). Compounds 2 and 3 are the very rare examples of silyl
transition metal complexes derived from this chelating hydrosilane ligand. To the best of
our knowledge, there are only six examples of bis(silyl) metal complexes prepared from this
ligand with such structural features registered in the Cambridge Structural Database, and
among them, only five bis(silyl) platinum(II) compounds are presented.
Crystals of 2 and 3 suitable for single-crystal X-ray analysis were grown by cooling a
dimethoxyethane solution to 0 °C, and the molecular structures determined at 293 K were
unambiguously confirmed by single-crystal X-ray structure analysis (figures 1 and 2). Com-
plexes 2 and 3 crystallize in the monoclinic space group C 2/c and orthorhombic space
group P 21 21 21, respectively (table 1). Compound 2 crystallizes with 0.5 molecule of
dimethoxyethane. The coordination geometry of Pt is completed by two chelating P atoms
and two Si atoms from one hydrosilane ligand. The average bond lengths of Pt–Si and Pt–P
are in good agreement with reported similar complexes [4]. The central Pt in 2 forms
P2Si2Pt(II) which attained a distorted square-planar geometry with P1–Pt1–P2 = 86.45(4)°,
P2–Pt1–Si1 = 176.24(3)°, P1–Pt1–Si2 = 178.25(3)°, and P2–Pt1–Si2 = 93.32(4)° bond
angles, respectively. Dimethoxy substituted silyl 3 also has similar configuration. The
central Pt ion adopts a distorted square-planar P2Si2Pt(II) coordination geometry and is

Bis(phosphine)(silyl) platinum(II)
7
Figure 1. The structure of 2 showing the coordination environment of Pt; the hydrogens bound to carbon are
omitted for clarity.
Figure 2. The structure of 3 showing the coordination environment of Pt; the hydrogens bound to carbon are
omitted for clarity.
surrounded by two chelating P atoms and two chelating Si atoms from one hydrosilane
ligand. The average bond lengths of Pt–Si (2.3319(12)–2.3628(12) Å) and Pt–P (2.3316
(11)–2.3326(10) Å) are in agreement with those observed in other similar complexes [4].
The bond angles of P1–Pt1–Si2 and P2–Pt1–Si1 are 173.86(4)° and 172.18(4)°, respec-
tively, showing Pt ion slightly deviates from the P2Si2 plane, which can be attributed to
steric repulsion between the silyl and phosphorus ligands. Furthermore, P1, C11, C12, and
P2 are not on the same plane. The plane bounded by P1, C11, and C12 makes an angle of
43.57° to the plane C11–C12–P2. The two methyl carbons (C9 and C10) on the two

8
W.-J. Zeng et al.
methoxy groups are situated in cis-positions of the plane bounded by O1–Si2–O2. All the
cyclohexyl groups adopt the typical chair configuration (table 2).
The structures of 2 and 3 were also well identified by the elemental analysis and multinu-
clear NMR spectroscopic studies. In the 31P{1H} NMR spectrum, the two chemically
1
inequivalent phosphorus atoms are a pair of doublets with relatively moderate JPt-P values
which are within the typical range of those observed in cis-bis(silyl)bis(phosphine)platinum
2
(II) complexes [8]. The signals for P–P coupling with small JP-P values in the spectrum
suggest that P atoms are cis. P–H signals for Si(CH3)2 groups of 2 and 3 in which the
hydrogens on the two methyl groups are chemically equivalent appear as a doublet of dou-
1
blets in the H NMR spectrum, which suggests that one P is trans and the other P atom is
cis to the Si(CH3)2 unit. Signals for SiH2 groups in the proton-decoupled 29Si NMR spectra
are also consistent with the structure. The SiH2 signals (a doublet of doublets) with a large
2
(146 Hz) and a small (14 Hz) JP-Si value indicate that the SiH2 group is cis to one P and
trans to the other P. The phosphorus–platinum coupling (1JPt-P) with a larger value
(1710 Hz) was attributed to the phosphorus trans to SiH2 unit. The silicon–platinum
coupling (1JPt-Si) value of Si connected with two methoxy groups is much larger than that
of the Si from the SiH2 unit, which may be due to the electronic effects of the methoxy
group on Si.
4. Conclusion
In this contribution, a bis(silyl) platinum(II) complex, 2, bearing a chelating dcpe ligand by
successive oxidative addition and reductive elimination of a poly(silyl) chelating hydrosi-
lane has been established. We report the synthesis, molecular structure, reactivity toward
hydrosilane ligand and sterically unhindered alcohol, and the thermodynamic behavior of
this new complex. Further applications of these silyl transition metal complexes to organic
synthesis are currently in progress.
Supplementary material
Crystallographic data for the structure has been deposited with the Cambridge Crystallo-
graphic Data Center, CCDC-1038769 for 2 and CCDC-1038773 for 3. Copies of the data
can be obtained free of charge on application to the Director, CCDC, 12 Union Road, Cam-
bridge CB2 1EZ, UK (Fax: +44 1223 336 033; E-mail for inquiry: www.ccdc.cam.ac.
uk/datarequest/cif; E-mail for deposition: deposit@ccdc.cam.ac.uk).
Disclosure statement
No potential conflict of interest was reported by the authors.
Funding
This work was financially supported by the Natural Science Foundation of Colleges and Universities in Jiangsu
Province [grant number 13KJB150028]; Natural Science Foundation of Jiangsu Province [grant number
BK20141425]; Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions and the
Ministry of Education of China [grant number IRT1148]; National Key Basic Research Program of China [grant
number 2014CB648300]; National Natural Science Foundation of China [grant number 51173082], [grant number
51274159].

Bis(phosphine)(silyl) platinum(II)
9
Supplemental data
Supplemental data for this article can be accessed http://dx.doi.org/10.1080/00958972.2015.1099635.
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