(broad, 3H, NH3), 3.917 (broad, 2H, NH2), 2.484 (d, 3H, J = 1.10,
CH3).195Pt NMR (DMF-d7): d -2054. Elemental analysis, found:
C 27.05, H 2.93, N 6.25. Calculated for C10H12N2O2Cl2Pt: C 26.21,
H 2.64, N 6.11.
14 L. R. Kelland, G. Abel, M. J. McKeage, M. Jones, P. M. Goddard,
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(OC-6-43)-ammine(7-amino-4-methylcoumarin)dichloro-dihy-
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in water (15 mL) and a 30% aqueous solution of H2O2 (500 mL)
was added. The mixture was stirred in the dark at 70 ◦C for 1 h.
The resulting dark brown solid was collected by vacuum filtration,
giving Pt(IV)-C120 (15 mg, 69%).
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23 C. Molenaar, J. Teuben, R. J. Heetebrij, H. J. Tanke and J. Reedijk,
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=
IR (KBr): 3598 ((Pt-)O–H), 3239 (NH3), 1732 (C O) 1617 (NH2,
1
NH3) cm-1. H NMR (DMF-d7): d 7.927 (d, 1H, J = 6.37 Hz,
aromatic H), 7.653 (broad, 3H, NH3) 7.561 (dd, 1H, J = 6.36,
1.56 Hz, aromatic H), 7.515 (d, 1H, J = 1.48 Hz, aromatic H),
6.513 (d, 1H, J = 0.95 Hz, CH), 4.117 (broad, 2H, NH2), 2.796
(broad, 2H, OH), 2.678 (d, 3H, J = 2.68, CH3).195Pt NMR (DMF-
d7): d 789.
24 R. Safaei, K. Katano, B. J. Larson, G. Samimi, A. K. Holzer, W.
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26 G. V. Kalayda, B. A. J. Jansen, C. Molenaar, P. Wielaard, H. J. Tanke
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27 B. A. J. Jansen, P. Wielaard, G. V. Kalayda, M. Ferrari, C. Molenaar,
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28 G. V. Kalayda, B. A. J. Jansen, P. Wielaard, H. J. Tanke and J. Reedijk,
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29 R. A. Alderden, PhD Thesis, The University of Sydney, 2006.
30 A. W. Czarnik, in Fluorescent Chemosensors for Ion and Molecule
Recognition, ed. A. W. Czarnik, American Chemical Society,
Washington, DC, 1993, pp. 1–9.
(SP-4-3)-ammine(7-amino-trifluoromethylcoumarin)dichloro-
platinum(II) (5). C151 (183 mg, 0.80 mmol) was dissolved in
ethanol (200 mL) and slowly added (over a period of 3 h) to
a [PtCl3(NH3)]- solution prepared as described above (20 mL,
0.80 mmol). The solution was stirred at room temperature for 3 d,
after which time a yellow-grey precipitate had formed. This was
isolated by vacuum filtration and washed with diethyl ether, giving
Pt(II)-C151 (197 mg, 49%).
IR (KBr): 3277, 3205 (NH2, NH3), 1749, 1622 (NH2, NH3) cm-1.
1H NMR (DMF-d7): d 7.735 (d, 1H, J = 8.04 Hz, aromatic H),
7.661 (broad, 2H, NH2), 7.482 (d, 1H, J = 10.02 Hz, aromatic H),
7.438 (s, 1H, aromatic H), 6.971 (s, 1H, aromatic H), 3.991 (broad,
3H, NH3). 195Pt NMR (DMF-d7): d -2087. Elemental analysis,
found: C 23.31, H 1.80, N 5.53. Calculated for C10H9N2F3Cl2Pt:
C 23.45, H 1.77, N 5.47.
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3100 | Dalton Trans., 2009, 3092–3101
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