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Transition metal complexes with bidentate ligands spanning trans-positions. Part XIV. Some complexes of 2,11-bis(diphenylphosphinomethyl)benzo[c]phenanthrene with platinum (0) and their reactivities

✍ Scribed by Patrizia Boron-Rettore; David M. Grove; Luigi M. Venazi

Publisher
John Wiley and Sons
Year
1984
Tongue
German
Weight
505 KB
Volume
67
Category
Article
ISSN
0018-019X

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✦ Synopsis

The ligand 2,1 l-bis(diphenylphosphinomethyl)benzo[c]phenanthrene (1) has been used to prepare complexes of the type [PtL(l)] (L = C,H,, CH,=CH-CO,Me, PhC-CPh, MeC-CMe, MeO,CC=CCO,Me, (i-Pr)O,CC-CCO,(i-Pr), Ph,P and CO). It is shown that these complexes are less labile than the corresponding species [PtL(Ph,P),]. The preparation of complexes trans-[PtX(R)(l)] by oxidative addition of RX (RX= PhCH,Br and MeI) to [Pt(C,H,)(l)] is described. The isolation of [PtO,(CH,),CO(l)] is also reported.

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Gradual decomposition occurs above the temperature stated. b, Recorded in CHCI, solution. ') Recorded in a nujol mull; shoulders at 2190 and 2100 are also observed. d, Recorded in a nulol mull.

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## Abstract The bidentate ligand 2,11‐bis(diphenylphosphinomethyl)benzo[__c__]phenanthrene (**1**) was synthesized from 2,11‐dimethyl‐benzo[__c__]phenanthrene (**3**) __via__ the corresponding bromomethyl derivative **9. 3** was obtained from the cyclization with boron trifluoride etherate of 1,1‐d

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The structures of [RhCl(CO)(l)] and [PdC1,(1)], where 1 is the bidentate ligand (C6H5)2P . CH2 . ClsHlo . CH2 . P (C6H5),, have been determined from threedimensional X-ray counter data collected on single crystals of the C6H5. CN solvates. The two compounds are isomorphous and crystallize in the tri

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## Abstract The preparation of the ditertiary phosphines 2,11‐bis (di‐__m__‐tolylphosphinomethyl)benzo [__c__]phenanthrene (**1b**), 2,11‐bis (di‐__p__‐anisylphosphinomethyl)benzo‐[__c__]phenanthrene (**1c**), 2,11‐bis (di‐__m__‐trifluoromethylphenylphosphinomethyl) benzo‐[__c__]phenanthrene (**1d*

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## Abstract The five‐coordinate mononuclear complexes [M(CO)~3~(**1**)] (M = Fe, Ru; (**1**) = 2,11‐bis(diphenylphosphinomethyl)benzo[c]phenanthrene) have been prepared and assigned trigonal bipyramidal structures with apical phosphorus atoms from IR. and NMR. data.