Palladium(II) and Platinum(II) Complexes of a Tetraphosphamacrocycle. X-ray Crystal Structures of Phosphorus Analogs of a (Tetramethylcyclam)metal Complex1
Palladium(II) and Platinum(II) Complexes of a Tetraphosphamacrocycle. X-ray Crystal Structures of Phosphorus Analogs of a (Tetramethylcyclam)metal Complex1
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四磷大环的钯 (II) 和铂 (II) 配合物。
DOI：
10.1021/ic960700y
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发表时间：
1997
影响因子：
4.6
通讯作者：
K. Miyoshi
中科院分区：
文献类型：
--
作者：
Tsutomu Mizuta;A. Okano;Tsutomu Sasaki;H. Nakazawa;K. Miyoshi
通过模板反应制备了钯 (II) 和铂 (II) 与 1,4,8,11-四甲基-1,4,8,11-四磷酸环十四烷的配合物，其中 [M(MeHPCH2CH2PHMe)2]Cl2 (M = Pd, Pt) 在 K2HPO4 作为碱存在下与 1,3-二溴丙烷反应。 Pd2+(6a) 和 Pt2+(6b) 络合物的溴化物盐以晶体形式以低产率分离。它们的分子结构通过X射线晶体学测定。两种化合物均具有方形平面几何形状，其中四个不对称磷原子的构型为反式 III (RRSS) 类型。 6a和6b的MP键距分别为2.268(1)和2.277(2)A，略小于非环状膦配合物的MP键距。 6a 的晶体学数据： 单斜晶系，空间群 C2/m，a = 8.4856(7) A，b = 17.273(1) A，c = 9.5712(7) A，β = 101.117(7)°，V = 1376.5(2) A3，Z = 2，R = 0.042。 6b 的晶体学数据： 三斜晶系，空间群 P1，a = 9.538(3) A，b = 9.781(2) A，c = 8.719(1) A，α = 115.34(...
Palladium(II) and platinum(II) complexes with 1,4,8,11-tetramethyl-1,4,8,11-tetraphosphacyclotetradecane were prepared by a template reaction in which [M(MeHPCH2CH2PHMe)2]Cl2 (M = Pd, Pt) reacts with 1,3-dibromopropane in the presence of K2HPO4 as a base. The bromide salts of the Pd2+(6a) and Pt2+(6b) complexes were isolated as crystals in a low yield. Their molecular structures were determined by X-ray crystallography. Both compounds have a square-planar geometry in which the configurations of the four asymmetric phosphorus atoms are of the trans III (RRSS) type. The M−P bond distances for 6a and 6b are 2.268(1) and 2.277(2) A, respectively, which are slightly smaller than those of the complexes with noncyclic phosphines. Crystallographic data for 6a: monoclinic, space group C2/m, a = 8.4856(7) A, b = 17.273(1) A, c = 9.5712(7) A, β = 101.117(7)°, V = 1376.5(2) A3, Z = 2, and R = 0.042. Crystallographic data for 6b: triclinic, space group P1, a = 9.538(3) A, b = 9.781(2) A, c = 8.719(1) A, α = 115.34(...