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- W2050429062 abstract "The isocyanide complexes ReBr(CO)4(CNR) (1a, R = Pr; 1b, R =iPr; 1c, R = Ph) are synthesized by reaction of ReBr(CO)5 with phosphinimines via a deoxygenation mechanism. Complexes 1a and 1b react with an additional equivalent of Ph3PNR to form the diisocyanide complexes ReBr(CO)3(CNR)2 (2a, R = Pr; 2b, R =iPr). The complex 1c reacts with isopropylamine and propylamine in ether to afford the amidinium (carbene) complexes ReBr(CO)4{C(NHPh)(NHR)} (4a, R =iPr; 4b, R = Pr). However, 1c does not react with tert-butylamine under the same reaction conditions. The reaction of 4a with PPh3 leads to the formation of the complexes ReBr(CO)3(PPh3){C(NHPh)(NHCHMe2)} (5). Complexes 4a and 5 were crystallographically characterized. 4a: P21/ c, a = 15.5557(15), b = 6.5831(6), c = 17.4149(9) Å, β = 107.829(6)°, V = 1697.72(24) Å3, Z = 4, R = 0.0 31, c = 10.1732(17) Å, α = 92.978(13)°, β = 119.612(8)°, γ = 91.627(10)°, V= 3034.1(8) Å3, Z = 4, R = 0.060, Rw = 0.079 for 8349 reflections with Fo ⩾ 2σ(Fo)." @default.
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- W2050429062 date "1992-02-01" @default.
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- W2050429062 title "Synthesis and reactivity of rhenium(I) isocyanide complexes. Crystal and molecular structures of ReBr(CO) 4{C(NHPh)(NHCHMe2)} and ReBr(CO)3(PPh3)IC(NHPh)(NHCHMe2)" @default.
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- W2050429062 doi "https://doi.org/10.1016/0022-328x(92)80025-s" @default.
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