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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：中国化学会创始会士、常务理事，中国化工学会会士
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工. 化学生物学
办公地点：大连理工大学西部校区知顺楼F-202#
http://peng-group.dlut.edu.cn/
联系方式：大连理工大学西部校区知顺楼F-202 辽宁省大连市高新区凌工路2号，大连116024 课题组网址：http://peng-group.dlut.edu.cn/ E-mail: pengxj@dlut.edu.cn
电子邮箱：pengxj@dlut.edu.cn
The employment of a hydrophilic tris(morpholino)phosphine ligand in diiron propane-1,3-dithiolate complexes for potentially water-soluble iron-only hydrogenase active-site mimics
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论文类型：期刊论文
发表时间：2013-01-01
发表刊物：NEW JOURNAL OF CHEMISTRY
收录刊物：SCIE、Scopus
卷号：37
期号：5
页面范围：1437-1444
ISSN号：1144-0546
摘要：A tris(morpholino) phosphine (TMP) ligand was introduced into the diiron dithiolate complexes in order to improve the hydro-and protophilicity of the iron-only hydrogenase active site models. Mono-and di-TMP substituted diiron complexes, (mu-pdt)[Fe(CO)(3)][Fe(CO)(2)(TMP)] (2, pdt = 1,3-propanedithiolato) and (mu-pdt) [Fe(CO)(2)(TMP)](2) (3), were synthesized and spectroscopically characterized. The coordination configuration of 3 was determined by single X-ray analysis. Temperature-dependent H-1 and P-31 NMR spectroscopy studies provided insight into the interconversion of the irondithiacyclohexane ring and the rotation of the [Fe(CO)(2)PR3] moieties for 2 and 3 in solution. The electrochemical properties of 2 and 3 were investigated in pure CH3CN and CH3CN-H2O mixtures in the absence and presence of acetic acid. Hydrogen production and the dependence of current on acid concentration indicated that complexes 2 and 3 exhibited electrocatalytic activities for proton reduction in both pure and H2O-containing CH3CN solutions. The current sensitivities, i.e., electrocatalytic activities, were demonstrated to be greater in CH3CN-H2O mixtures than in pure CH3CN. The most effective electrocatalytic activities of 2 and 3 were observed with 10% added water.