在本文中,我们报告了双核铁催化剂中O-O键形成过程中结构调节的重要性。三种配合物,[Fe 2(μ-O)(OH 2)2(TPA)2 ] 4+(1),[Fe 2(μ-O)(OH 2)2(6-HPA)] 4+(2)和[Fe 2(μ-O)(OH 2)2(BPMAN)] 4+(3)被设计为在0.1 M NaHCO 3溶液(pH 8.4)中进行水氧化的电催化剂。我们发现1和2是分子催化剂,并且O-O键的形成是通过oxo-oxo偶联进行的,而不是通过水亲核攻击(WNA)途径进行的。相反,络合物3显示可忽略的催化活性。DFT计算建议抗到顺两个高价的异构化在这些催化剂的Fe = O基团经由一个Fe的轴向旋转=围绕的Fe-O-铁中心O单元进行。接下来是在Fe IV Fe IV状态下通过氧-氧代偶联途径或在Fe IV Fe V状态下通过氧-氧偶联途径形成O-O键。重要的是,复合物3中的刚性BPMAN配体限制了抗到顺式异构化和轴向中的Fe
Jones, Gurnos; Mouat, Deborah J.; Tonkinson, Daryl J., Journal of the Chemical Society. Perkin transactions I, 1985, p. 2719 - 2724
作者:Jones, Gurnos、Mouat, Deborah J.、Tonkinson, Daryl J.
DOI:——
日期:——
JONES, G.;MOUAT, D. J.;TONKINSON, D. J., J. CHEM. SC. PERKIN TRANS., 1985, N 12, 2719-2723
作者:JONES, G.、MOUAT, D. J.、TONKINSON, D. J.
DOI:——
日期:——
Insulin and IGF-1 receptor agonists and antagonists
申请人:Pillutla Renuka
公开号:US20070004634A1
公开(公告)日:2007-01-04
Peptide sequences capable of binding to insulin and/or insulin-like growth factor receptors with either agonist or antagonist activity and identified from various peptide libraries are disclosed. This invention also identifies at least two different binding sites, which are present on insulin and insulin-like growth factor receptors, and which selectively bind the peptides of this invention. As agonists, the peptides of this invention may be useful for development as therapeutics to supplement or replace endogenous peptide hormones. The antagonist peptides may also be developed as therapeutics.
INSULIN AND IGF-1 RECEPTOR AGONISTS AND ANTAGONISTS
申请人:Pillutla Renuka
公开号:US20070265189A1
公开(公告)日:2007-11-15
Peptide sequences capable of binding to insulin and/or insulin-like growth factor receptors with either agonist or antagonist activity and identified from various peptide libraries are disclosed. This invention also identifies at least two different binding sites, which are present on insulin and insulin-like growth factor receptors, and which selectively bind the peptides of this invention. As agonists, certain of the peptides of this invention may be useful for development as therapeutics to supplement or replace endogenous peptide hormones. The antagonists may also be developed as therapeutics.
Insulin and IGF-1 Receptor Agonists and Antagonists
申请人:Pillutla Renuka
公开号:US20090053807A1
公开(公告)日:2009-02-26
Peptide sequences capable of binding to insulin and/or insulin-like growth factor receptors with either agonist or antagonist activity and identified from various peptide libraries are disclosed. This invention also identifies at least two different binding sites, which are present on insulin and insulin-like growth factor receptors, and which selectively bind the peptides of this invention. As agonists, the peptides of this invention may be useful for development as therapeutics to supplement or replace endogenous peptide hormones. The antagonist peptides may also be developed as therapeutics.