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25398-76-9

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25398-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25398-76-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,3,9 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 25398-76:
(7*2)+(6*5)+(5*3)+(4*9)+(3*8)+(2*7)+(1*6)=139
139 % 10 = 9
So 25398-76-9 is a valid CAS Registry Number.

25398-76-9Relevant articles and documents

Heteroleptic Chini-Type Platinum Clusters: Synthesis and Characterization of Bis-Phospine Derivatives of [Pt3n(CO)6n]2- (n = 2-4)

Cesari, Cristiana,Ciabatti, Iacopo,Femoni, Cristina,Iapalucci, Maria Carmela,Mancini, Federica,Zacchini, Stefano

, p. 1655 - 1668 (2017)

The reactions of [Pt3n(CO)6n]2- (n = 2-4) homoleptic Chini-type clusters with stoichiometric amounts of Ph2PCH2CH2PPh2 (dppe) result in the heteroleptic Chini-type clusters [Pt6(CO)10(dppe)]2-, [Pt9(CO)16(dppe)]2-, and [Pt12(CO)20(dppe)2]2-. Their formation is accompanied by slight amounts of neutral species such as Pt4(CO)4(dppe)2, Pt6(CO)6(dppe)3, and Pt(dppe)2. A similar behavior was observed with the chiral ligand R-Ph2PCH(Me)CH2PPh2 (R-dppp), and two isomers of [Pt9(CO)16(R-dppp)]2- were identified. All the new species were spectroscopically characterized by means of IR and 31P NMR, and their structures were determined by single-crystal X-ray diffraction. The results obtained are compared to those previously reported for monodentate phosphines, that is, PPh3, as well as more rigid bidentate ligands, that is, CH2C(PPh2)2 (P^P), CH2(PPh2)2 (dppm), and o-C6H4(PPh2)2 (dppb). From a structural point of view, functionalization of anionic platinum Chini clusters preserves their triangular Pt3 units, whereas the overall trigonal prismatic structures present in the homoleptic clusters are readily deformed and transformed upon functionalization. Such transformations may be just local deformations, as found in [Pt9(CO)16(dppe)]2-, [Pt9(CO)16(R-dppp)]2-, [Pt12(CO)22(PPh3)2]2-, and [Pt9(CO)16(PPh3)2]2-; an inversion of the cage from trigonal prismatic to octahedral, as observed in [Pt6(CO)10(dppe)]2- and [Pt6(CO)10(PPh3)2]2-; the reciprocal rotation of two trigonal prismatic units with the loss of a Pt-Pt contact as found in [Pt12(CO)20(dppe)2]2-.

Transition metal chemistry of low valent group 13 organyls

Gemel, Christian,Steinke, Tobias,Cokoja, Mirza,Kempter, Andreas,Fischer, Roland A.

, p. 4161 - 4176 (2004)

The coordination of low-valent group 13 organyls EIR [E = Al, Ga, In; R = Cp*, C(SiMe3)3] to transition metals has attracted increasing interest over the past decade. Complexes and cluster compounds of these new ligands with a number of transition metals have been isolated and characterised. The EIR moiety is formally isolobal with CO and PR3 (R = alkyl, Cp*) or carbenes (R = chelating group) with varying σ-donor and π-acceptor properties depending on the organic group R as well as the group 13 metal E. In this review, different ways of forming M-E bonds such as substitution reactions of labile ligands or insertion of EIR into transition metal halide bonds are described. Furthermore, the reactivity of homoleptic complexes Ma(EIR) b, is discussed, outlining the use of these new complex types in bond activation reactions. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

Homo- and heteroleptic complexes of four-membered group 13 metal(I) N-heterocyclic carbene analogues with group 10 metal(0) fragments

Green, Shaun P.,Jones, Cameron,Stasch, Andreas

, p. 11 - 13 (2007)

A series of complexes between recently developed four-membered group 13 metal(I) heterocycles and group 10 metal(0) fragments have been prepared and structurally characterized. One prepared complex, [Pt{Ga[N(Ar)] 2CNCy2}3] (Ar = C6H 3Pri2-2,6; Cy = cyclohexyl), possesses the shortest Pt-Ga bonds yet reported, the covalent components of which are suggested by theoretical studies to have significant π character.

Syntheses of mono- and dinuclear silylplatinum complexes bearing a diphosphino ligand via stepwise bond activation of unsymmetric disilanes

Arii, Hidekazu,Takahashi, Makiko,Nanjo, Masato,Mochida, Kunio

, p. 6434 - 6440 (2010/09/06)

Zero-valence platinum complex [Pt(dppe)(η2-C 2H4)] (1, dppe = 1,2-bis(diphenylphosphino)ethane) treated with disilanes HR1R2SiSiMe3 (a, R1 = R2 = Me; b, R1 = R2 = Ph; c, R1 = H, R2 = Ph) afforded the corresponding disilanylplatinum hydrides [Pt(dppe)(H)(SiR1R2SiMe3)] (2a-c) by oxidative addition of the Si-H bond to the platinum center. The 1,2-silyl migration in 2a,b led to the formation of bis(silyl)platinum complexes [Pt(dppe)(SiHR 1R2)(SiMe3)] (3a,b) with a first-order rate constant of 7.2(2) × 10-4 s-1 at 25°C for 2a and 3.86(4) × 10-4 s-1 at 40°C for 2b, whereas 2c with R1 = H followed by the transient generation of 3c dimerized rapidly to give the bis(μ-silylene)diplatinum complex [Pt(dppe)(μ-SiHPh)] 2 (4c) in a mixture of cis/trans isomers. Heating of the toluene solution of 3b at 100°C resulted in a similar dimerization to 4b. In addition, a trinuclear platinum complex [Pt3(dppe) 3(μ3-SiPh)2] (5) with a trigonal bipyramidal Pt3Si2 core arose from the reaction of 4c with 1 at 60°C in toluene. Unsymmetric disilanes therefore accomplished the syntheses of various monomeric and dimeric platinum complexes via 1,2-hydrogen and silyl migration to the platinum center. The Royal Society of Chemistry.

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