G. Shahverdizadeh, S. Masoudian, A. Soudi, A. Morsali, P. Retailleau
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引用次数: 3
摘要
[Pb(μ3-Nic)2]n， (HNic = 4-烟酸)的晶体结构为正交结构，空间群Pbcn为a = 16.595(1)， b = 10.028(1)， c = 14.635(1) a, Z = 2。采用直接法求解晶体结构，并用全矩阵最小二乘法将其细化至最终值R1 = 0.0277和wR2 = 0.0609，反射频率为3553，反射频率为>2σ(I)。[Pb(μ3-Nic)2]n中的铅(II)离子为八坐标，Pb- n和Pb- o键的方向表明铅(II)离子周围的配位是全向的。
Crystal Structure of [Pb(μ3-Nic)2]n, HNic = 4-nicotinic acid
The crystal structure of [Pb(μ3-Nic)2]n, (HNic = 4-nicotinic acid) is orthorhombic, space group Pbcn with a = 16.595(1), b = 10.028(1), c = 14.635(1)A and Z = 2. The crystal structure was solved by direct methods and refined by full-matrix least squares to final values of R1 = 0.0277 and wR2 = 0.0609 with 3553 reflections I >2σ(I). The lead(II) ion in [Pb(μ3-Nic)2]n is eight-coordinate and the direction of the Pb-N and Pb-O bonds shows that the coordination around the lead(II) ion is holodirected.
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