Crystal engineering in mercury(II) coordination compounds based on pyrazine carboxamide ligand
نویسندگان
چکیده
منابع مشابه
Dibromidobis(pyrazine-2-carboxamide-κN 4)zinc
The title complex, [ZnBr(2)(C(5)H(5)N(3)O)(2)], shows crystallographic mirror symmetry with the Zn atom and the two bromine ligands located on the mirror plane. The Zn atom is four-coordinated in a distorted tetra-hedral fashion by two N atoms from two pyrazine-2-carboxamide ligands and two Br atoms. Only one of the amino H atoms is involved in an N-H⋯O hydrogen bond. The crystal packing is fur...
متن کاملN-(2-Chloroethyl)pyrazine-2-carboxamide
In the title mol-ecule, C(7)H(8)ClN(3)O, the pyrazine and amide groups are almost co-planar [N-C-C-N torsion angle = -2.4 (2) °], a conformation stabilized by an intra-molecular N-H⋯N hydrogen bond. The chloro-ethyl group lies out of the plane [N-C-C-Cl = -65.06 (17) °]. In the crystal, the presence of N-H⋯N hydrogen bonds leads to the formation of a C(6) supra-molecular chain along the b axis....
متن کاملN-(2-Phenoxyphenyl)pyrazine-2-carboxamide
In the title compound, C(17)H(13)N(3)O(2), the pyrazine ring is oriented at 1.65 (11) and 88.33 (17)° with respect to the benzene rings. The benzene rings are nearly perpendicular to each other [dihedral angle 87.14 (17)°]. In the crystal, a weak C-H⋯N hydrogen bond occurs.
متن کاملCrystal structures of N-(pyridin-2-ylmethyl)pyrazine-2-carboxamide (monoclinic polymorph) and N-(pyridin-4-ylmethyl)pyrazine-2-carboxamide1
The title compounds, C11H10N4O (HL1) and C11H10N4O (HL2), are pyridine 2-ylmethyl and 4-ylmethyl derivatives, respectively, of pyrazine-2-carboxamide. HL1 was measured at 153 K and crystallized in the monoclinic space group P21/c with Z = 4. There has been a report of the same structure measured at room temperature but assumed to crystallize in the triclinic space group P-1 with Z = 4 [Sasan et...
متن کاملDiaquabis(nitrato-κ2 O,O′)bis(pyrazine-2-carboxamide-κN 4)cadmium–pyrazine-2-carboxamide (1/2)
In the title compound, [Cd(NO(3))(2)(C(5)H(5)N(3)O)(2)(H(2)O)(2)]·2C(5)H(5)N(3)O, the Cd(II) cation is located on a twofold rotation axis and is coordinated by two pyrazine-2-carboxamide ligands and two water mol-ecules and chelated by two nitrate anions in a distorted square-anti-prismatic geometry. Extensive inter-molecular N-H⋯O, N-H⋯N, O-H⋯O and O-H⋯N hydrogen bonds, as well as weak inter-m...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2011
ISSN: 0108-7673
DOI: 10.1107/s0108767311090398