Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Hui-Fen Qian"'
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 9, Pp o2420-o2420 (2011)
In the title compound, C18H24N22+·2Cl−·H2O, both the cation and the water molecule lie on a twofold crystallographic axis. In the cation, the two benzene rings are perpendicular to each other, making a symmetry-constrained dihedral angle of 90°.
Externí odkaz:
https://doaj.org/article/5aaeaae29e4f4ad1912962e3f8345a64
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o2044-o2044 (2011)
In the title molecular salt, C7H6N3O2S+·HSO4−, the 2-amino-6-nitro-1,3-benzothiazole ring system is essentially planar [mean deviation = 0.0605 (4) Å]. In the crystal, N—H...O and O—H...O hydrogen-bonding interactions result in a layer motif.
Externí odkaz:
https://doaj.org/article/3024429ae6fc490f89289c3ec6f87dde
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o2059-o2059 (2011)
In the title compound, C12H12Cl2N22+·SO42−, the two rings are not coplanar [dihedral angle = 48.7 (2)°]. In the crystal, multiple N—H...O hydrogen-bond interactions are found between the ammonium and sulfate groups.
Externí odkaz:
https://doaj.org/article/431dc754ca8f4404a46ed7a203748613
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 12, Pp o3086-o3086 (2010)
In the title compound, C5H7N2+·N3−·C5H6N2, all N atoms of the azide anion are situated on a twofold rotational axis, so the 4-aminopyridinium cation and 4-aminopyridine molecule, being related by symmetry, occupy one position in the asymmetric un
Externí odkaz:
https://doaj.org/article/d80b39f7d9044ed580bf4479d3e48502
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 5, Pp o1060-o1060 (2010)
The title compound, C12H14N4, has a crystallographically imposed centre of symmetry. Intermolecular N—H...N hydrogen bonds between amino groups link adjacent molecules into a three-dimensional network where ten-membered hydrogen-bonded rings are ob
Externí odkaz:
https://doaj.org/article/1849620bef854ae9a0bd84fa6c49f209
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 4, Pp o759-o759 (2010)
In the title compound, C4H8N5+·Cl−, a two-dimensional layer packing network is observed in which every chloride anion links three adjacent 2,4-diamino-6-methyl-1,3,5-triazin-1-ium cations by N—H...Cl hydrogen-bonding interactions, forming 12-mem
Externí odkaz:
https://doaj.org/article/320d141dc12f458ca332f5fefe5fa9ff
Autor:
Hui-Fen Qian, Wei Huang
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 3, Pp o695-o695 (2010)
In the title compound, C6H8NO2+·Cl−, intermolecular O—H...Cl and N—H...Cl hydrogen bonds are observed in which each chloride anion links three adjacent cations into a hydrogen-bond network.
Externí odkaz:
https://doaj.org/article/5ba2a3fb2420409cb6b435e1ca7684fa
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 2, Pp m131-m132 (2009)
The tetranuclear copper(II) title complex, [Cu4Cl2(OH)4(C10H8N2)4](NO3)2·6H2O, has a crystallographically imposed centre of symmetry. The metal atoms display a distorted tetragonal-pyramidal coordination geometry, and are linked by two μ2- and two
Externí odkaz:
https://doaj.org/article/32a8f589159e4dc590cd9a19fde13de3
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 1, Pp o115-o115 (2009)
In the title salt, C7H8N3+·HSO4−, the benzimdazole ring system is planar [mean deviation 0.0086 (1) Å]. In the crystal, N—H...O and O—H...O hydrogen-bond interactions give rise to a layer motif.
Externí odkaz:
https://doaj.org/article/2918806c21df44c7a6d397611380187a
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 8, Pp m1011-m1011 (2008)
In the title compound, [Cu(C7H3Cl2O2)2]n, the CuII atom lies on a centre of inversion and adopts a [4+2] coordination mode, with two long axial Cu—Cl coordinative bonds complementing four Cu—O bonds from two 2,4-dichloro-6-formylphenolate ligands
Externí odkaz:
https://doaj.org/article/89413caba43645109fc21cfaee96a9a2