η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]

Weber L, Dembeck G, Lönneke P, Stammler H-G, Neumann B (2001)
Organometallics 20(11): 2288-2293.

Journal Article | Published | English

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Abstract
Reaction of [Tp*(CO)(2)M=C-P=C(NMe2)(2)] [1a, M = Mo; Ib, W; Tp*=HB(3,5-Me(2)pz)(3)] with 2 molar equiv of [Au(CO)Cl] afforded the trinuclear complexes [Tp*(CO)(2)M=C-P(AuCl)(2)C(NMe2)(2)] 2a (M = Mo) and 2b (M = W). In marked contrast to this the arsenic analogues [Tp*(CO)(2)M=C-As=C(NMe2)(2)] (3a, M = Mo; 3b, M = W), when treated with the gold complex, give rise to As=C cleavage with formation of the gold carbene complex [ClAuC(NMe2)(2)] (5) and the functionalized cyclotriarsanes [{Tp*(CO)(2)M=C-As}(3)] 4a (M = Mo) and 4b (M = Mo). Compounds 2a,b and 4a,b have been characterized by IR and H-1 and C-13 NMR spectroscopy. In addition, the molecular structures of 2a, 2b, and 5 have been determined by single-crystal X-ray structural analyses.
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Weber L, Dembeck G, Lönneke P, Stammler H-G, Neumann B. η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]. Organometallics. 2001;20(11):2288-2293.
Weber, L., Dembeck, G., Lönneke, P., Stammler, H. - G., & Neumann, B. (2001). η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]. Organometallics, 20(11), 2288-2293.
Weber, L., Dembeck, G., Lönneke, P., Stammler, H. - G., and Neumann, B. (2001). η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]. Organometallics 20, 2288-2293.
Weber, L., et al., 2001. η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]. Organometallics, 20(11), p 2288-2293.
L. Weber, et al., “η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]”, Organometallics, vol. 20, 2001, pp. 2288-2293.
Weber, L., Dembeck, G., Lönneke, P., Stammler, H.-G., Neumann, B.: η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]. Organometallics. 20, 2288-2293 (2001).
Weber, Lothar, Dembeck, Gottfried, Lönneke, Peter, Stammler, Hans-Georg, and Neumann, Beate. “η1-Ligation versus Pnictogen-Carbon Double Bond Cleavage - the Contrasting Behavior of Phospha- and Arsaalkenes [Tp'(CO)2M≡C-E=C(NMe2)2] [E = P, As; M = Mo, W; Tp' = HB(3,5-Me2pz)3 toward [Au(CO)Cl]”. Organometallics 20.11 (2001): 2288-2293.
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