MLCT-DD ENERGY-GAP IN PYRIDYL PYRIMIDINE AND BIS(PYRIDINE) COMPLEXES OF RUTHENIUM(II)

被引：125

作者：

RILLEMA, DP ^{[1
]}

BLANTON, CB ^{[1
]}

SHAVER, RJ ^{[1
]}

JACKMAN, DC ^{[1
]}

BOLDAJI, M ^{[1
]}

BUNDY, S ^{[1
]}

WORL, LA ^{[1
]}

MEYER, TJ ^{[1
]}

机构：

[1] UNIV N CAROLINA,DEPT CHEM,CHAPEL HILL,NC 27514

来源：

INORGANIC CHEMISTRY | 1992年 / 31卷 / 09期

关键词：

D O I：

10.1021/ic00035a016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The photophysical and photochemical properties of a series of 2-(2'-pyridyl)pyrimidine and bis(pyridine) polypyridyl complexes of ruthenium(II) are described. The temperature dependences of the emission decay were fit to the equation 1/tau(T) = k1 + k2 exp(-DELTA-E2/RT). The values of k1 ranged from 7.1 x 10(5) to 8.7 x 10(6) s-1, k2 ranged from 9 x 10(6) to 3 x 10(17) s-1, and DELTA-E2 ranged from 428 to 4776 cm-1. A plot of ln k2 vs DELTA-E2, known as a Barclay-Butler plot, was linear with a slope of 2.9 x 10(-3) cm and a y intercept of 5.9. The study demonstrates the usefulness of excited-state parameters for assessing the photolability and/or stability of ruthenium(II) pyridyl complexes. It has also led to the design of the photostable core "[Ru(bpy)(bpz)]2+" which may be of value in the design of molecular assemblies.

引用

页码：1600 / 1606

页数：7

共 58 条

[1] SYNTHETIC CONTROL OF EXCITED-STATE PROPERTIES - TRIS-CHELATE COMPLEXES CONTAINING THE LIGANDS 2,2'-BIPYRAZINE, 2,2'-BIPYRIDINE, AND 2,2'-BIPYRIMIDINE [J].