Low-temperature redetermination of 1,3-bis(pentafluorophenyl)triazene
نویسندگان
چکیده
The crystal structure of the title compound, (C(6)F(5))(2)N(3)H, is stabilized by N-H⋯N hydrogen bonding, forming centrosymmetric dimers organized in a herringbone motif. Important geometrical parameters are N-N = 1.272 (2) and 1.330 (2) Å and N-N-N = 112.56 (15)°. The dihedral angle between C(6)F(5) groups is 21.22 (9)°. The room temperature structure was reported by Leman et al. (1993). Inorg. Chem.32, 4324-4336]. In the current determination, the data were collected to a higher θ angle, resulting in higher precision for the C-C bond lengths(0.001-0.005 versus 0.003 Å).
منابع مشابه
Redetermination of Crystal Structure of N,N'-bis (2-Hydroxybenzylidene)-2,2-Dimethyl-1,3-Propanediamine
The structure of N,N'-bis(2-hydroxybenzylidene)-2,2-dimethyl-1,3-propanediamine, C19H22N2O2, has been studied at low temperature (120K) by means of single-crystal X-ray diffraction. Solving the structure shows an orthorhombic unit cell, with P212121 space group, Z = 4, a = 6.1046 (4) Å, b = 15.8349 (11)</e...
متن کاملRedetermination of Bis(ÿ4-1,3-cyclohexadiene)monocarbonyliron
The crystal structure of bis(ÿ-1,3-cyclohexadiene)monocarbonyliron has been redetermined by X-ray data. The compound crystallizes in the enantiomorphic, orthorhombic space group P212121 with one complete molecule in the asymmetric unit. For concordance to the originally reported structure, which was determined under ambient conditions, the redetermination has been carried out at room temperatur...
متن کاملAn axial chirality and disorder of positional isomers in a crystal of highly cytotoxic 3-acetyl-1,3-bis(2-chloro-4-nitrophenyl)-1E-triazene.
Biologically active 4-nitro-substituted 1,3-diaryltriazene, a chemical analogue of 1,3-bis(4'-amidinophenyl)-triazene-berenil®, belongs to the novel, chemically modified class of potent antitumor agents. Its structural characterization by X-ray analysis and 1H NMR spectroscopy is performed to determine molecular overall conformation in view of its possible interaction to DNA.
متن کامل6-Benzyl-2-methyl-1,3-bis(pentafluorophenyl)-1,3,6,2-triazaalumocane
In the title compound, [Al(CH(3))(C(23)H(15)F(10)N(3))], the Al(III) atom is coordinated in a distorted tetra-hedral geometry by three N atoms from the tridentate amine and by one C atom of the methyl substituent. Further, there is a short intra-molecular Al⋯F contact [2.5717 (11) Å], leading to an overall distorted trigonal-bipyramidal coordination environment around Al(III).
متن کاملRedetermination of Crystal Structure of N,N'-bis (2-Hydroxybenzylidene)-2,2-Dimethyl-1,3- Propanediamine
The structure of N,N'-bis(2-hydroxybenzylidene)-2,2-dimethyl-1,3-propanediamine, C19H22N2O2, has been studied at low temperature (120K) by means of single-crystal X-ray diffraction. Solving the structure shows an orthorhombic unit cell, with P212121 space group, Z = 4, a = 6.1046 (4) Å, b = 15.8349 (11) Å, c = 17.2898 (12) Å and V = 1671.3 (2) Å. There are two relatively strong hydrogen bonds (...
متن کامل