Synthesis and characterization of bis(η2-alkyne)dihalogeno-mercury(II) compounds: crystal structure of [NBu4]2-[{cis-Pt(C6F5)2(CCSiMe3)2}HgBr2]·CH2Cl2
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 23,p. 3343-3348
- https://doi.org/10.1039/dt9940003343
Abstract
The reactions of [NBu4]2[cis-Pt(C6F5)2(CCR)2](R = But or SiMe3) with HgX2(X = Cl, Br or I) in a 1:1 molar ratio afforded the simple monomeric bis(η2-alkyne)mercury(II) compounds [NBu4]2[{cis-Pt(C6F5)2(CCR)2}HgX2](R = But or SiMe3; X = Cl, Br or I) in which both alkyne units are co-ordinated η2 side-on to the precursor mercury(II) halides. Similar treatment of [NBu4]2[Pt(CCR)4]·2H2O (R = But or SiMe3) with HgX2 in a 1:2 molar ratio gave the corresponding trinuclear 1:2 adducts. All the complexes have been characterized by analytical and spectroscopic data and, in addition, the molecular structure of [NBu4]2[{cis-Pt(C6F5)2(CCSiMe3)2}HgBr2]·CH2Cl2 has been determined by X-ray diffraction methods. The structure of the anion shows that the HgBr2 unit is attached to the dianionic fragment [Pt(C6F5)2(CCSiMe3)2]2– only through η2 side-on co-ordination of the two (trimethylsilyl)ethynyl ligands. The platinum–mercury distance is 3.627(1.5)Å.Keywords
This publication has 63 references indexed in Scilit:
- Transformation of the C2H ligand in Fp*C.tplbond.CH [Fp* = (.eta.5-C5Me5)Fe(CO)2] into various C2 functional groups via an iron-substituted vinylidene complex, (.eta.5-C5H4Me)Mn(CO)2[:C:C(H)Fp*]: its amphoteric reactivities, structural comparisons relevant to 1-alkyne-to-vinylidene rearrangements, and electronic influences on structures of heterobimetallic bridging alkynyl complexes [(.eta.5-C5R5)M(CO)2]2(.mu.-C2R)Organometallics, 1994
- Synthesis and structure of phosphaalkenylmercury compoundsOrganometallics, 1992
- Preparation of doubly acetylide-bridged binuclear platinum-platinum and platinum-palladium complexes. Structures of [[(dppe)Pt(C.tplbond.CPh)2]Pt(C6F5)2] and (PMePh3)2[(C6F5)2Pt(.mu.-C.tplbond.CPh)2Pt(C6F5)2]Organometallics, 1992
- Mercury-bridged transition-metal clusters. 5. Synthesis and structure of (.mu.3-.eta.2-C2-tert-Bu)(CO)9M3(.mu.3-Hg)M' [M = Ru, Os; M' = Fe(.eta.5-C5H5)(CO)2, Ru(.eta.5-C5H5)(CO)2, Mo(.eta.5-C5H5)(CO)3, Co(CO)4] and [(.mu.-H)(.mu.3-S)(CO)9Os3]2(.mu.4-Hg)Organometallics, 1991
- Metalation of alkynes. 5. Reaction of diphenylethyne with mercuric salts in alcohols. Synthesis, stereochemistry, and structure of (.beta.-alkoxyvinyl)mercury adductsOrganometallics, 1990
- [{Ni2(μ‐CNMe)(CNMe)4(Ph2PCH2PPh2)}2Hg]‐[NiCl4], a Spirocyclic Ni4Hg Cluster with an HgII‐CenterAngewandte Chemie International Edition in English, 1990
- Vinylidene transition metal complexes. Part X. Synthesis of alkynylrhodium complexes containing a rhodium-mercury bond and of the vinyl complex [C5H5Rh(CH:CHPh)(P-iso-Pr3)SnCl3] from vinylidenerhodium precursorsOrganometallics, 1990
- Metalation of alkynes. 4. The methoxymercuration reactionThe Journal of Organic Chemistry, 1989
- .pi.-Conjugation and dynamic behavior in doubly acetylide-bridged binuclear group 4 bent metallocene complexesOrganometallics, 1989
- Synthesis, structure, and reactivity of mercurial derivatives of an organoruthenium clusterJournal of the American Chemical Society, 1980