SYNTHESIS AND ELECTROCHEMISTRY OF PTERINS COORDINATED TO TETRAAMMINERUTHENIUM(II)

被引：41

作者：

ABELLEIRA, A ^{[1
]}

GALANG, RD ^{[1
]}

CLARKE, MJ ^{[1
]}

机构：

[1] BOSTON COLL, DEPT CHEM, CHESTNUT HILL, MA 02167 USA

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 04期

关键词：

D O I：

10.1021/ic00329a016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Compounds of the general type cis-[L(NH3)4Ru]Br2, in which the Ru(II) is coordinated between the N5 and 04 sites, have been synthesized, where L = lumazine, 1,3-dimethyllumazine, 3-methylpterin, 8-methylpterin, and 3,6,7-trimethylpterin. These com¬plexes have been characterized as to their electrochemistry and electronic and fluorescence spectra. Voltammetry and controlled-potential coulometry show that coordinated pterins methylated at N3 undergo a le redox process, which is reversible in DMF on the CV time scale. Intense retrodative bonding with Ru(II) raises the potential for the Ru(III,II) couple to the range 560–720 mV and alters the site of protonation to N8. © 1990, American Chemical Society. All rights reserved.

引用

页码：633 / 639

页数：7

共 54 条

[1] QUANTITATIVE STUDIES OF THE AVIDITY OF NATURALLY OCCURRING SUBSTANCES FOR TRACE METALS .3. PTERIDINES, RIBOFLAVIN AND PURINES [J].