TY - JOUR
T1 - Reactions of coordinated dinitrogen-XXII. Synthesis, characterization and reactions of hydrazido(2-) complexes of molybdenum. Crystal structures of two hydrazido(2-) complexes
AU - George, T. Adrian
AU - Koczon, Lenore M.
AU - Tisdale, Robert C.
AU - Gebreyes, Kassu
AU - Ma, Lidun
AU - Shaikh, Shadid N.
AU - Zubieta, Jon
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - The reactions of anhydrous HX (X = Br, Cl) with trans-Mo(N2)2(triphos) (PPh3) (1) where triphos = PhP(CH2CH2PPh2)2, yield [MoX(NNH2)(triphos)(PPh3)]X as a mixture of isomers: 1A(X) and 1B(X). In solution, PPh3 dissociates rapidly from the B isomer. Addition of PPh3 to a mixture of 1A(X) and 1B(X) enabled the separation of the isomers by fractional crystallization. Addition of PPh2Me to a mixture of 1A(X) and 1B(X) led to the isolation of 1A(X) and [MoX(NNH2)(triphos)(PPh2Me)]X [2B(X)]. Amber 1A(Cl) crystallizes with one molecule of toluene in the monoclinic space group P21 with a = 13.714(2), b = 13.924(2), c = 14.279(3) Å, β = 102.44(1)°, and Z = 2. Olive-green 2B(Cl) crystallizes with two molecules of salvation; one each of pentane and toluene, in the triclinic space group P1 with a = 12.922(2), b = 13.552(3), c = 18.067(4) Å, α = 106.04(1), β = 107.65(1), γ = 97.22(1)°, and Z = 2. Loss of PPh3 from 1B(X) is proposed to be due to steric factors. Yields of ammonia and hydrazine formed from all the nitrogen hydride complexes are summarized.
AB - The reactions of anhydrous HX (X = Br, Cl) with trans-Mo(N2)2(triphos) (PPh3) (1) where triphos = PhP(CH2CH2PPh2)2, yield [MoX(NNH2)(triphos)(PPh3)]X as a mixture of isomers: 1A(X) and 1B(X). In solution, PPh3 dissociates rapidly from the B isomer. Addition of PPh3 to a mixture of 1A(X) and 1B(X) enabled the separation of the isomers by fractional crystallization. Addition of PPh2Me to a mixture of 1A(X) and 1B(X) led to the isolation of 1A(X) and [MoX(NNH2)(triphos)(PPh2Me)]X [2B(X)]. Amber 1A(Cl) crystallizes with one molecule of toluene in the monoclinic space group P21 with a = 13.714(2), b = 13.924(2), c = 14.279(3) Å, β = 102.44(1)°, and Z = 2. Olive-green 2B(Cl) crystallizes with two molecules of salvation; one each of pentane and toluene, in the triclinic space group P1 with a = 12.922(2), b = 13.552(3), c = 18.067(4) Å, α = 106.04(1), β = 107.65(1), γ = 97.22(1)°, and Z = 2. Loss of PPh3 from 1B(X) is proposed to be due to steric factors. Yields of ammonia and hydrazine formed from all the nitrogen hydride complexes are summarized.
UR - http://www.scopus.com/inward/record.url?scp=0039710570&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0039710570&partnerID=8YFLogxK
U2 - 10.1016/S0277-5387(00)86232-4
DO - 10.1016/S0277-5387(00)86232-4
M3 - Article
AN - SCOPUS:0039710570
SN - 0277-5387
VL - 9
SP - 545
EP - 551
JO - Polyhedron
JF - Polyhedron
IS - 4
ER -