Mixed-metal cluster chemistry (see astract)

Alistair J. Usher; Mark G. Humphrey; Anthony C. Willis

doi:10.1016/S0022-328X(03)00438-8

Mixed-metal cluster chemistry (see astract)

Alistair J. Usher, Mark G. Humphrey^*, Anthony C. Willis

^*Corresponding author for this work

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7 Citations (Scopus)

Abstract

Reactions of MoIr₃(μ-CO)₃(CO)₈ (η-C₅H₅) (1) with stoichiometric amounts of isocyanides afford the ligand-substituted clusters [MoIr₃(μ-CO)₃(CO)_8-n(L)_n (η-C₅H₅)] (L=CNBu^t, n=1 (3), 2 (4), 3 (5); L=CNC₆H₃Me₂-2,6, n=1 (6), 2 (7), 3 (8)) in moderate to excellent yields (13-75%). Single-crystal X-ray studies of 3 and 6 reveal that the isocyanides occupy coordination sites on an apical cluster core metal atom, a first for ligand-substituted derivatives of 1. In contrast, reaction of Mo₂Ir₂(μ-CO)₃(CO)₇ (η-C₅H₅)₂ (2) with one or two equivalents of CNBu^t affords Mo₂Ir₂ (μ-CO)₂(CNBu^t)₂(CO)₆ (η-C₅H₅)₂ (9) as the only major product. A single-crystal X-ray study of 9 reveals an unprecedented carbonyl configuration about the pseudotetrahedral cluster core.

Original language	English
Pages (from-to)	72-81
Number of pages	10
Journal	Journal of Organometallic Chemistry
Volume	678
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-328X(03)00438-8
Publication status	Published - 15 Jul 2003

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title = "Mixed-metal cluster chemistry (see astract)",

abstract = "Reactions of MoIr3(μ-CO)3(CO)8 (η-C5H5) (1) with stoichiometric amounts of isocyanides afford the ligand-substituted clusters [MoIr3(μ-CO)3(CO)8-n(L)n (η-C5H5)] (L=CNBut, n=1 (3), 2 (4), 3 (5); L=CNC6H3Me2-2,6, n=1 (6), 2 (7), 3 (8)) in moderate to excellent yields (13-75%). Single-crystal X-ray studies of 3 and 6 reveal that the isocyanides occupy coordination sites on an apical cluster core metal atom, a first for ligand-substituted derivatives of 1. In contrast, reaction of Mo2Ir2(μ-CO)3(CO)7 (η-C5H5)2 (2) with one or two equivalents of CNBut affords Mo2Ir2 (μ-CO)2(CNBut)2(CO)6 (η-C5H5)2 (9) as the only major product. A single-crystal X-ray study of 9 reveals an unprecedented carbonyl configuration about the pseudotetrahedral cluster core.",

keywords = "Carbonyl, Cluster, Cyclopentadienyl, Iridium, Isocyanide, Molybdenum",

author = "Usher, {Alistair J.} and Humphrey, {Mark G.} and Willis, {Anthony C.}",

year = "2003",

month = jul,

day = "15",

doi = "10.1016/S0022-328X(03)00438-8",

language = "English",

volume = "678",

pages = "72--81",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

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TY - JOUR

T1 - Mixed-metal cluster chemistry (see astract)

AU - Usher, Alistair J.

AU - Humphrey, Mark G.

AU - Willis, Anthony C.

PY - 2003/7/15

Y1 - 2003/7/15

N2 - Reactions of MoIr3(μ-CO)3(CO)8 (η-C5H5) (1) with stoichiometric amounts of isocyanides afford the ligand-substituted clusters [MoIr3(μ-CO)3(CO)8-n(L)n (η-C5H5)] (L=CNBut, n=1 (3), 2 (4), 3 (5); L=CNC6H3Me2-2,6, n=1 (6), 2 (7), 3 (8)) in moderate to excellent yields (13-75%). Single-crystal X-ray studies of 3 and 6 reveal that the isocyanides occupy coordination sites on an apical cluster core metal atom, a first for ligand-substituted derivatives of 1. In contrast, reaction of Mo2Ir2(μ-CO)3(CO)7 (η-C5H5)2 (2) with one or two equivalents of CNBut affords Mo2Ir2 (μ-CO)2(CNBut)2(CO)6 (η-C5H5)2 (9) as the only major product. A single-crystal X-ray study of 9 reveals an unprecedented carbonyl configuration about the pseudotetrahedral cluster core.

AB - Reactions of MoIr3(μ-CO)3(CO)8 (η-C5H5) (1) with stoichiometric amounts of isocyanides afford the ligand-substituted clusters [MoIr3(μ-CO)3(CO)8-n(L)n (η-C5H5)] (L=CNBut, n=1 (3), 2 (4), 3 (5); L=CNC6H3Me2-2,6, n=1 (6), 2 (7), 3 (8)) in moderate to excellent yields (13-75%). Single-crystal X-ray studies of 3 and 6 reveal that the isocyanides occupy coordination sites on an apical cluster core metal atom, a first for ligand-substituted derivatives of 1. In contrast, reaction of Mo2Ir2(μ-CO)3(CO)7 (η-C5H5)2 (2) with one or two equivalents of CNBut affords Mo2Ir2 (μ-CO)2(CNBut)2(CO)6 (η-C5H5)2 (9) as the only major product. A single-crystal X-ray study of 9 reveals an unprecedented carbonyl configuration about the pseudotetrahedral cluster core.

KW - Carbonyl

KW - Cluster

KW - Cyclopentadienyl

KW - Iridium

KW - Isocyanide

KW - Molybdenum

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U2 - 10.1016/S0022-328X(03)00438-8

DO - 10.1016/S0022-328X(03)00438-8

M3 - Article

SN - 0022-328X

VL - 678

SP - 72

EP - 81

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 1-2

ER -

Mixed-metal cluster chemistry (see astract)

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