Phosphorus-31 and platinum-195 NMR studies of carboxylato-bridged dinuclear platinum(II) complexes
✍ Scribed by S. Kannan; V. K. Jain
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 294 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Carboxylato‐bridged dinuclear platinum(II) complexes of the type [Pt~2~X~2~(μ‐OOCR′)~2~(PR~3~)~2~] [X = Cl, I; R′ = CH~3~, CF~3~; PR~3~ = PEt~3~^n^, PPr~3~^n^, PBu~3~^n^, PMe~2~Ph, PMePh~2~, PPh~3~, P(p‐Tol)~3~] were prepared and investigated by ^31^P and ^195^Pt NMR spectroscopy. The NMR data indicate that there is considerable platinum‐platinum interaction in these complexes.
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NH2(CH&CH3 and (for Pt) C2H4. For both metals, the NMR. parameters depend on the trans-influence of the ligand L. The values 1J(195Pt, 15N) vary from 138 to 336 Hz and can be shown to correlate with the values 1J(195Pt, 31P) in the complexes trans-[PtCl,(PBu!j)L]. There is a linear relation between
## Abstract An acetylide‐bridged dinuclear platinum(II) terpyridyl complex, [Pt(4‐__p__‐tolyl‐terpy)‐i‐phenyl‐=‐(4′‐__p‐tolyl__‐terpy)Pt](C10~4~)~2~ (1). has been successfully synthesized and its photophysical properties are reported.
## Abstract Platinum‐195 chemical shift measurements for __cis__‐PtCl~2~(PCy~3~)~2~ and __trans__‐PtXCl(PCy~3~)~2~ (X = H, Cl, SnCl~2~Ph and SnCl~3~) in methylene chloride solution are reported. A comparison of these shifts with those from analogous complexes containing less bulky phosphine ligands