两个手性氧钒配合物[VO(Naph-Leu)(OMe)(CH_3OH)]和[VO(Naph-Phe)(OMe)(CH_3OH)]的合成、晶体结构和光谱表征

Synthesis, Crystal Structure and Spectroscopic Characterization of Two Chiral Oxovanadium Complexes [VO(Naph-Leu)(OMe)(CH_3OH)] and [VO(Naph-Phe)(OMe)(CH_3OH)]

合成了2个新的手性L-亮氨酸萘酚醛和L-苯丙氨酸萘酚醛希夫碱氧钒配合物,[VO(Naph-Leu)(OMe)(CH3OH)](1)和[VO(Naph-Phe)(OMe)(CH3OH)](2)。X-射线单晶衍射分析表明,1晶体属于正交晶系,P21212空间群,晶胞参数为:a=0.946 80(8)nm,b=3.246 3(3)nm,c=0.662 37(5)nm,V=2.035 9(3)nm3,Z=4,F(000)=864,R1=0.046 3,wR2=0.112 7,S=1.076。2晶体属于单斜晶系,P21空间群,晶胞参数为:a=1.113 41(11)nm,b=0.724 09(6)nm,c=1.342 99(12)nm,V=1.047 95(16)nm3,Z=2,F(000)=464,R1=0.035 8,wR2=0.088 8,S=1.024。测定了它们的红外光谱、紫外光谱和圆二色光谱,讨论了紫外吸收光谱和圆二色光谱性质。

Two new chiral oxovanadium complexes, [VO（Naph-Leu）（OMe）（CH3OH）] （1） and [VO（Naph-Phe）（OMe） （CH3OH）] （2）, （Naph-Leu=Schiff base derived from 2-hydroxy-l-naphthaldehyde and L-leucine, Naph-Phe=Schiff base derived from 2-hydroxy-l-naphthaldehyde and L-phenylalanine）, have been synthesized. Single crystal X-ray diffraction analysis showed that complex 1 crystallized in the orthorhombic crystal system, space group P2_12_1 2 with the cell parameters： a=0.946 80（8） nm, b=3.246 3（3） nm, c=0.662 37（5） nm, V=2.035 9（3） nm3, Z=4, F（000） =864, R1=0.046 3, wR：=0.112 7, S=1.076; and complex 2, crystallized in the monoclinic crystal system, space group P21 with the cell parameters： a=1.113 41（11） nm, b=0.724 09（6） nm, c=1.342 99（12） nm, V=1.047 95（16） nm3, Z=2, F（000）=464, R1=0.035 8, wR2=0.088 8, S=1.024. The IR, UV-Vis and circular dichroism （CD） spectra of the two complexes were measured and discussed. CCDC： 885240, 1; 897188, 2.