@article {2680,
	title = {N-Heterocyclic Carbene Rhodium Complexes and Their Reactions with H-2 and with CO},
	journal = {European Journal of Inorganic Chemistry},
	number = {13},
	year = {2009},
	note = {ISI Document Delivery No.: 447KWTimes Cited: 5Cited Reference Count: 53Yu, Xiao-Yan Sun, Hongsui Patrick, Brian O. James, Brian R.},
	month = {May},
	pages = {1752-1758},
	type = {Article},
	abstract = {The NHC-Rh-I complexes [RhCl(COE)(NHC)](2) 1 and 2 [COE = cyclooctene, NHC in 1 = N,N-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr) and, in 2, N,N-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes)] react with H-2 in hexane to give the dimeric, mono-carbene dihydrido species [Rh(H)(2)Cl(NHC)](2) (NHC = IPr (3), IMes (4)). In the presence of further NHC, the bis-carbene dihydrido species Rh(H)(2)Cl(NHC)(2) are formed; a crystal structure of the IPr complex 5 is analogous to that of the known IMes analogue. The dihydride-mixed-carbene species Rh(H)(2)Cl(IPr)(IMes) (5a) was also observed but not isolated. A benzene solution of 5 under D-2 slowly generates the corresponding dideuteride. Reactions of the mono-carbenes (1/3, or 2/4) with CO in hexane afford the respective dicarbonyl complexes RhCl(CO)(2)(NHC) [NHC = IPr (6), IMes (7)], while CO reactions with the bis-carbene dihydrides give, respectively, the mono-carbonyl complex RhCl(CO)(IPr)(2) (8) and the known IMes analogue. All the complexes are characterized by elemental analysis, H-1 and C-13{H-1} NMR and IR spectroscopies and, in the case of 5, by X-ray crystallography. The catalytic activities of 5 and the previously reported Rh(H)(2)Cl(IMes)(2) for hydrogenation of COE and 1-octene (and isomerization of the latter) are shown to be poor. ((c) Wiley-VCH Verlag GmbH \& Co. KGaA, 69451 Weinheim, Germany, 2009)},
	keywords = {14-ELECTRON, Carbene ligands, carbonyl ligands, CATALYTIC-ACTIVITY, COORDINATION CHEMISTRY, H ACTIVATION, Hydrides, HYDROFORMYLATION, HYDROGENATION, iridium complexes, LIGANDS, NHC COMPLEX, NMR, RH(III), rhodium},
	isbn = {1434-1948},
	url = {<Go to ISI>://000266191000009},
	author = {Yu, X. Y. and Sun, H. S. and Patrick, B. O. and James, Brian R.}
}
@article {4547,
	title = {SYNTHESIS, STRUCTURE AND HYDROGENATION OF ETA-3-BENZYL DIPHOSPHINE COMPLEXES OF RHODIUM AND IRIDIUM},
	journal = {Journal of Organometallic Chemistry},
	volume = {445},
	number = {1-2},
	year = {1993},
	note = {ISI Document Delivery No.: KR221Times Cited: 30Cited Reference Count: 39},
	month = {Feb},
	pages = {245-256},
	type = {Article},
	abstract = {{The preparation of(COD)Rh(eta3-CH2Ph) is described starting from [(COD)Rh]2(mu-Cl)2 by the addition of either Zn(CH2Ph), or Mg(CH2Ph)2(THF)2. The addition of the bulky chelating diphosphines tBu2P(CH2)3PtBu2, iPr2P(CH2)3PiPr2, iPr2P(CH2)2PiPr2, iPr2PCH2PiPr2 and Cy2PCH2PCy2 to (COD)Rh(eta3-CH2Ph) yields the coordinatively unsaturated, four-coordinate rhodium complexes of the form P2Rh(eta3-CH2Ph). Iridium complexes of the form P2Ir(eta3-CH2Ph)(where P2 = tBu2P(CH2)3PtBu, and iPr2P(CH2)3PiPr2) can be prepared from [P2Ir]2(mu-Cl), and Zn(CH2Ph)2 or Mg(CHPh)2(THF)2. Reaction of the benzyl complexes with H-2 (1 atM) yields binuclear hydride derivatives of varying composition depending on the chelate ring size of the coordinated diphosphine. For the diphosphines with only a single methylene in the backbone, binuclear hexahydride complexes are formed in which the diphosphine is binucleating. The X-ray structure of {iPr2P(CH22)3PiPr2}Rh(eta3-CH2Ph) shows a square planar geometry about rhodium with alternating single and double bonds in the eta3-coordinated benzyl fragment. Crystals of (1,3-bis(diiso-propylphosphino)propane}rhodium(eta3-benzyl) are monoclinic},
	keywords = {BINUCLEAR, BRIDGING ALKENYL, CATALYTIC-HYDROGENATION, CHEMISTRY, DIHYDROGEN, Hydrides, OXIDATIVE-ADDITION, RAY CRYSTAL-STRUCTURE, REACTIVITY, RHRE(CO)4(PH2PCH2PPH2)2},
	isbn = {0022-328X},
	url = {<Go to ISI>://A1993KR22100035},
	author = {Fryzuk,Michael D. and McConville, D. H. and Rettig, S. J.}
}
