نتایج جستجو برای: 1 diium tri cyanomethanide

تعداد نتایج: 2764014  

2010
Hong-Yun Qiao Su-Hai Xu He-Xia Jiang

In the title compound, C(19)H(26)N(2) (2+)·2Cl(-), the piperazinediium ring exhibits a chair conformation. The dihedral angle between the two benzene ring planes is 76.45 (13)°. Both amine-group H atoms participate in hydrogen bonding with the two Cl atoms.

2011
Cong-hu Peng

The title compound, (C(5)H(14)N(2))[CuBr(4)], was synthesized by hydro-thermal reaction of CuBr(2) with 1-methyl-piperazine in an HBr/water solution. Both amine N atoms are protonated. The Cu-Br distances in the tetrahedral anion are in the range 2.3809 (11)-2.4131 (11) Å. In the crystal, moderately strong and weak inter-molecular N-H⋯Br hydrogen bonds link the anion and cation units into an in...

2012
Marwa Adib Meher El Glaoui Pedro Sidonio Pereira da Silva Manuela Ramos Silva Cherif Ben Nasr

In the title compound, {(C(5)H(14)N(2))[Cd(2)Cl(6)]·H(2)O}(n), the asymmetric unit contains one piperazinediium cation, one [Cd(2)Cl(6)](2-) anion and a water mol-ecule. The coordination geometries of the two Cd(2+) cations are distorted octa-hedral. Adjacent Cd(II) atoms are inter-connected alternately by paired chloride bridges, generating polymeric chains parallel to [010]. Neighbouring chai...

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2010
Claudia Solís Viviana Grosso Nathaniel Faggioli Gonzalo Cosa Mario Romero Carlos Previtali Hernán Montejano Carlos Chesta

We report herein the solvent and temperature effects on the emission of the intermolecular exciplexes 1-cyanonaphthalene/triethylamine and 1-methylnaphthalene/triethylamine and the intramolecular exciplexes formed by the bichromophoric compounds diethyl-(3-naphthalen-1-yl-propyl)-amine (I), diethyl-(2-naphthalen-1-yl-ethyl)-amine (II), 3-[ethyl-(2-naphthalen-1-yl-ethyl)-amino]-propionitrile (II...

2012
Yu-Han Jiang Qi-Ming Qiu Min Liu Qiong-Hua Jin Cun-Lin Zhang

In the title salt, C10H10N2(2+)·2C7H4NS2(-), the complete 4,4'-bipyridine-1,1'-diium dication is generated by a center of symmetry. In the crystal, N-H⋯N hydrogen bonds are observed between the cations and anions.

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

2012
Su-Wen Sun

In the title hydrated mol-ecular salt, C(6)H(16)N(2) (2+)·2Br(-)·2H(2)O, the complete 1,4-dimethyl-piperazine-1,4-diium dication is generated by crystallographic inversion symmetry and both exocyclic C-N bonds are in equatorial orientations. In the crystal, the components are linked by N-H⋯O and O-H⋯Br hydrogen bonds, generating chains propagating in [110].

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Acta Crystallographica Section E Structure Reports Online 2014

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