NEW LITHIUM PORPHYRIN DERIVATIVES - SYNTHESIS OF LI-2(P)(ET(2)O)(2) (P=TTP, TBPP) AND SOLUTION STRUCTURE OF LI-2(TTP)(ET(2)O)(2) BY LI-7 AND N-15 NMR

被引：48

作者：

BRAND, H ^{[1
]}

CAPRIOTTI, JA ^{[1
]}

ARNOLD, J ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

来源：

INORGANIC CHEMISTRY | 1994年 / 33卷 / 19期

关键词：

D O I：

10.1021/ic00097a021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation of new lithium porphyrinates Li-2(P)(ether)(2) [P = dianion of tetra-p-tolylporphyrin (TTP), dianion of tetrakis(p-tert-butylphenyl)porphyrin (TBPP); ether = Et(2)O, Bu(2)O] is reported, employing a slight modification of the established literature procedure. The new derivatives are quite soluble in nonpolar solvents and possess a well-defined stoichiometry. Variable temperature H-1, Li-7, and N-15 NMR spectroscopy served to elucidate the solution structure of Li-2(TTP)(Et(2)O)(2). The two lithium atoms are coordinated symmetrically to the four porphyrin nitrogens above and below the porphyrin plane and each binds to an additional diethyl ether oxygen. Base-free dilithium porphyrins were also prepared. In addition an improved synthesis of 3,4-diethylpyrrole, the precursor for preparation of octaethylporphyrin (H(2)OEP), is reported.

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页码：4334 / 4337

页数：4

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