Please use this identifier to cite or link to this item:
|Title:||Homolytic Cleavage and Aggregation Processes in Cyclopentadienylchromium Chemistry||Authors:||Weng, Z.
|Issue Date:||Mar-2004||Citation:||Weng, Z., Goh, L.Y. (2004-03). Homolytic Cleavage and Aggregation Processes in Cyclopentadienylchromium Chemistry. Accounts of Chemical Research 37 (3) : 187-199. ScholarBank@NUS Repository. https://doi.org/10.1021/ar030003r||Abstract:||The reactivity of the cyclopentadienylchromium tricarbonyl dimer [CpCr(CO) 3] 2 (Cp = C 5H 5, 1) toward several classes of organo-P-, -S- and -N-compounds will be described. The organic substrates include the following: (i) bis(diphenylthiophosphinyl)disulfane, R 2P(S)SSP(S)R 2; (ii) bis(thiophosphoryl)disulfane, (RO) 2P(S)SSP(S)(OR) 2; (iii) tetraalkylthiuram disulfides, R 2NC(S)SSC(S)NR 2; (iv) tetraalkyldiphosphine disulfides, R 2P(S)P(S)R 2; (v) dibenzothiazolyl disulfide, (C 6H 4NSC) 2; and (vi) Lawesson's reagent, (CH 3OC 6H 4) 2P 2S 4. The primary products, namely, the complexes CpCr(CO) 2(SPR 2), CpCr(CO) 2(S 2CNR 2), CpCr(CO) 2(SCSN(C 6H 4)), and CpCr(CO) 2(SPC 6H 4OCH 3), containing the thiophosphinito, dithiocarbamate, 2-mercaptobenzothiazole, and dithiophosphorane ligands, respectively, arise from facile cleavage of the S-S, P-P, and P-S bonds in the organic substrates. Further treatment of these complexes with 1 under thermal activation results in cleavage of C-X (X = N, S), P-S, and Cr-E (E = C, N, P, S) bonds, accompanied by C-C and P-P bond formation in some cases, generating a variety of organometallic compounds belonging to the phosphido, phosphinidene, thiocarbenoid, dithiooxamide, aminocarbyne, aminoalkenylacyl, and cuboidal types.||Source Title:||Accounts of Chemical Research||URI:||http://scholarbank.nus.edu.sg/handle/10635/93967||ISSN:||00014842||DOI:||10.1021/ar030003r|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 19, 2019
WEB OF SCIENCETM
checked on Mar 26, 2019
checked on Apr 6, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.