引用本文:
陈晨, 张瑞, 王璇, 曹运珠, 白凤英, 张晓溪, 李光华, 施展, 邢永恒. 过氧钒配合物的合成、结构及模拟过氧化酶催化溴化动力学[J]. 应用化学,
2013, 30(12): 1453-1462.
doi:
10.3724/SP.J.1095.2013.20546
Citation: CHEN Chen, ZHANG Rui, WANG Xuan, CAO Yunzhu, BAI Fengying, ZHANG Xiaoxi, LI Guanghua, SHI Zhan, XING Yongheng. Synthesis,Structure and Mimic Haloperoxidase Catalytic Activity of Peroxovanadium Complexes[J]. Chinese Journal of Applied Chemistry, 2013, 30(12): 1453-1462. doi: 10.3724/SP.J.1095.2013.20546
Citation: CHEN Chen, ZHANG Rui, WANG Xuan, CAO Yunzhu, BAI Fengying, ZHANG Xiaoxi, LI Guanghua, SHI Zhan, XING Yongheng. Synthesis,Structure and Mimic Haloperoxidase Catalytic Activity of Peroxovanadium Complexes[J]. Chinese Journal of Applied Chemistry, 2013, 30(12): 1453-1462. doi: 10.3724/SP.J.1095.2013.20546
过氧钒配合物的合成、结构及模拟过氧化酶催化溴化动力学
摘要:
根据模拟钒卤代过氧化物酶(V-HPOs)活性中心的配位环境,设计并合成了2种新型过氧钒配合物:Na[VO(O2)2(C10H8N2)]·8H2O(1)和K3H[(VO)2(O2)4(μ2-O)]·H2O(2),通过元素分析、红外光谱和紫外光谱对其进行了表征,并通过X射线单晶衍射方法确定了其结构。配合物1晶体属于三斜晶系,空间群:P-1,a=0.7213(2)nm,b=1.1269(4)nm,c=1.3728(4)nm,α=68.349(4)°,β=89.178(4)°,γ=88.050(4)°,V=1.0365(6)nm3。配合物2的晶体属于单斜晶系,空间群:P21/c,a=0.67047(12)nm,b=0.99503(18)nm,c=1.5817(3)nm,α=γ=90°,β=93.739(2)°,V=1.0530(3)nm3。配合物1和2分别是五角双锥和八面体配位构型。通过催化溴化反应活性研究发现,2种配合物均可作为潜在的钒卤代过氧化物酶模拟物。
English
Synthesis,Structure and Mimic Haloperoxidase Catalytic Activity of Peroxovanadium Complexes
Abstract:
Based on mimicking the environment of the active center of vanadium haloperoxidase (V-HPOs),we designed and synthesized two kinds of peroxovanadium complexes:Na[VO(O2)2 (C10H8N2)]·8H2O(1) and K3H[(VO)2 (O2)4(μ2-O)]·H2O(2),which were structurally characterized by X-ray single crystal diffraction,elemental analysis,IR and UV-Vis spectroscopies. Structural analyses reveal that complex 1 crystallized in an triclinic system with space group P-1,a=0.7213 (2) nm,b=1.1269 (4) nm,c=1.3728 (4) nm,α=68.349 (4)°,β=89.178 (4)°,γ=88.050 (4)°,V=1.0365 (6) nm3 and the complex 2 crystallized in an monoclinic system with space group P21/c, a=0.67047 (12) nm,b=0.99503 (18) nm,c=1.5817 (3) nm,α=γ=90°,β=93.739 (2)°,V=1.0530 (3) nm3. Complex 1 has a distorted pentagonal bipyramidal geometry,while complex 2 has a distorted octahedron geometry. In addition,by studying the bromination reaction activity,it shows that the peroxovanadium complexes can be considered as a potential functional model of bromoperoxidase.
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Key words:
- vanadium haloperoxidase
- / peroxovanadium complex
- / crystal structure
- / catalytic activity
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