Fluxional behavior of a cadmium zwitterion complex: Proton transport and tautomerism in methylene chloride solution

被引：43
作者：
Anderson, OP
la Cour, A
Berg, A
Garrett, AD
Wicholas, M [1 ]
机构：
[1] Western Washington Univ, Dept Chem, Bellingham, WA 98225 USA
[2] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA
来源：
INORGANIC CHEMISTRY | 2003年 / 42卷 / 15期
关键词：
D O I：
10.1021/ic034620n
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis and structure of the tautomeric Cd(II) isoindoline zwitterion coordination compound [Cd(4'-MeLH)(NO3)(2)].CH3OH (4'-MeLH = 1,3-bis{2-(4-methylpyridyl)imino}isoindoline) are reported. In methylene chloride solution, tautomer interconversion occurs as the N-H proton moves between the identical imine nitrogen atoms. We report the kinetics of proton transfer as followed by variable temperature H-1 NMR spectroscopy and demonstrate that methanol of solvation and adventitious water facilitate rapid proton transfer.
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页码：4513 / 4515
页数：3
相关论文
共 14 条
[1]  
ABRAHAM RJ, 1974, TETRAHEDRON LETT, V16, P1483
[2]   Syntheses and structures of isoindoline complexes of Zn(II) and Cu(II): An unexpected trinuclear Zn(II) complex [J].
Anderson, OP ;
la Cour, A ;
Dodd, A ;
Garrett, AD ;
Wicholas, M .
INORGANIC CHEMISTRY, 2003, 42 (01) :122-127
[3]  
ANDERSON OP, UNPUB
[4]   Preparation and oxygenation of (flavonolato)copper isoindoline complexes with relevance to quercetin dioxygenase [J].
Balogh-Hergovich, É ;
Kaizer, J ;
Speier, G ;
Huttner, G ;
Jacobi, A .
INORGANIC CHEMISTRY, 2000, 39 (19) :4224-4229
[5]   FREE ACID PORPHYRIN AND ITS CONJUGATED MONOANION [J].
BRAUN, J ;
HASENFRATZ, C ;
SCHWESINGER, R ;
LIMBACH, HH .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1994, 33 (21) :2215-2217
[6]   STRUCTURAL INVESTIGATIONS OF METAL NITRATE COMPLEXES .1. CRYSTAL AND MOLECULAR STRUCTURE OF BIS[DINITRATOBIS(PYRIDINE)COPPER(II)]-PYRIDINE [CU(NO3)2(PY)2]2,PY [J].
CAMERON, AF ;
FORREST, KP ;
TAYLOR, DW ;
NUTTALL, RH .
JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1971, (15) :2492-&
[7]   MONONUCLEAR AND BINUCLEAR METAL-COMPLEXES OF "1,3-BIS(2-PYRIDYLIMINO)ISOINDOLINES [J].
GAGNE, RR ;
MARRITT, WA ;
MARKS, DN ;
SIEGL, WO .
INORGANIC CHEMISTRY, 1981, 20 (10) :3260-3267
[8]   SLOW PROTON-TRANSFER REACTIONS IN ORGANOMETALLIC AND BIOINORGANIC CHEMISTRY [J].
KRAMARZ, KW ;
NORTON, JR .
PROGRESS IN INORGANIC CHEMISTRY, VOL 42, 1994, 42 :1-65
[9]   Mechanism and quantum mechanical tunneling effects on inner hydrogen atom transfer in free base porphyrin: A direct ab initio dynamics study [J].
Maity, DK ;
Bell, RL ;
Truong, TN .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (05) :897-906
[10]   An intramolecular base-catalyzed proton transfer in 1,3-bis(4-fluorophenyl) triazene [J].
Mannle, F ;
Limbach, HH .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1996, 35 (04) :441-442
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