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Conformation Diversity of Complexes Constructed by N-(2-Pyridylmethyl)-phenylalanine and Zn(Ⅱ)

Conformation Diversity of Complexes Constructed by N-(2-Pyridylmethyl)-phenylalanine and Zn(Ⅱ)

作     者:李新发 刘庆燕 谢在来 李涛海 李亚峰 曹荣 

作者机构:State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Sciences 

出 版 物:《Chinese Journal of Structural Chemistry》 (结构化学(英文))

年 卷 期:2009年第28卷第1期

页      面:53-60页

核心收录:

学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基  金:Supported by 973 Program (2006CB932900) NNSFC (90206040, 20325106, 20521101) NSF of Fujian Province (2005HZ01-1, E0520003, 2005J058, 2006F3134) "The Distinguished Oversea Scholar Project" and "One Hundred Talent Project" from CAS 

主  题:zinc Complex amino acid conformation configuration isomerism 

摘      要:Four configurationally and conformationally related Zn(II) complexes with a tridentate ligand namely, N-(2-pyridylmethyl)-phenylalanine (Hpmpa), have been synthesized by hydrothermal reactions. [Zn(L-α-pmpa)2·HaO] 1: orthorhombic, space group P21212 with a = 15.1091(7), b = 16.2417(8), c = 5.9972(3) A, V= 1471.70(12)A^3, Z = 2, Mr = 593.97, Dc = 1.340 g/cm^3,μ = 0.879 mm^-1, F(000) = 620, Rint= 0.0205, R = 0.0450 and wR = 0.1578 for 3102 observed reflections with I 〉 2σ(I); [Zn(D-α-pmpa)2·2H2O] 2: orthorhombic, space group P21212 with a = 15.1023(6), b = 16.2516(7), c = 6.0024(2)A, V= 1473.21(10)A^3, Z = 2, Mr = 611.98, Dc = 1.380 g/cm^3,μ = 0.882 mm^-1, F(000) = 640, Rint= 0.0337, R = 0.0484 and wR = 0.1435 for 2408 observed reflections with I 〉 2σ(I); [Zn(L-β-pmpa)2] 3: monoclinic, space group C2/c with a = 27.8667(5), b = 5.60350(10), c = 19.9636(2)A β = 120:2210(10)°, V = 2693.66(7)A^3, Z = 4, Mr = 575.95, De= 1.420 g/cm^3,μ = 0.955 mm^-1, F(000) = 1200, Rint= 0.0345, R = 0.0358 and wR = 0.1135 for 2251 observed reflections with I 〉 2σ(I); and [Zn(D-β-pmpa)2] 4. They are all mononuclear discrete structures. The influence of temperature and pH on the conformation of structures has been investigated. Moreover, the photoluminescent properties of compounds 1 and 3 are also reported.

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