Electronlc Conductivity bf Poly(N-alkylene, N'-xylylen, N, N, N', N'tetramethyl diammonium dichloride)-7, 7, 8, 8Tetracyanoquinodimethane Salts
نویسندگان
چکیده
منابع مشابه
N,N′-Bis[2-(methoxycarbonyl)ethyl]ethane-1,2-diammonium dichloride
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In the title compound, C(14)H(30)N(2) (2+)·2Cl(-), the N,N'-dicyclo-hexyl-ethyl-enediammonium cation posseses crystallographic symmetry, and thus the compound crystallizes with two formula units per unit cell. In the crystal, the cations and anions are linked by N-H⋯Cl hydrogen bonds, giving a two-dimensional network with {6,3} topology.
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The asymmetric unit of the title complex, [Ni(C(16)H(20)N(2))(2)(H(2)O)(2)]Cl(2)·C(3)H(7)NO, consists of two Ni(II) atoms, each lying on an inversion center, two Cl anions, two N,N'-dibenzyl-ethane-1,2-diamine ligands, two coordinated water mol-ecules and one N,N-dimethyl-formamide solvent mol-ecule. Each Ni(II) atom is six-coordinated in a distorted octa-hedral coordination geometry, with the ...
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Let $R$ be a ring, and let $n, d$ be non-negative integers. A right $R$-module $M$ is called $(n, d)$-projective if $Ext^{d+1}_R(M, A)=0$ for every $n$-copresented right $R$-module $A$. $R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted, it is called a right co-$(n,d)$-ring if every right $R$-module is $(n, d)$-projective. $R$...
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MNDO semi-empirical SCF MO calculations are used to study the pyramidal nitrogen atom inversion and configurational equilibria in the title compounds.
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ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1973
ISSN: 2185-0925,0369-4577
DOI: 10.1246/nikkashi.1973.1760