2-Amino-4-(4-pyridyl)pyrimidine and the 1:1 adduct with 4-aminobenzoic acid

被引：21
|
作者：
Lynch, DE [1 ]
McClenaghan, I [1 ]
机构：
[1] Coventry Univ, Sch Sci & Environm, Coventry CV1 5FB, W Midlands, England
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 2001年 / 57卷
关键词：
D O I：
10.1107/S0108270101005819
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The structure of the title compound, C9H8N4, comprises nonplanar molecules that associate via pyrimidine N-H . . .N dimer R-2(2)(8) hydrogen-bonding associations [N . . .N 3.1870 (17) Angstrom] and form linear hydrogen-bonded chains via a pyrimidine NH . . .N(pyridyl) interaction [N . .N 3.0295 (19) Angstrom]. The dihedral angle between the two rings is 24.57 (5)degrees. The structure of the 1:1 adduct with 4-aminobenzoic acid, C9H8N4.C7H7NO2, exhibits a hydrogen-bonding network involving COOH . .N(pyridyl) [O . .N 2.6406 (17) Angstrom], pyrimidine N-H . . .N [N . . .N 3.0737 (19) and 3.1755 (18) Angstrom] and acid N-H . . .O interactions [N . . .O 3.0609 (17) and 2.981 (2) Angstrom]. The dihedral angle between the two linked rings of the base is 38.49 (6)degrees and the carboxylic acid group binds to the stronger base group in contrast to the (less basic) complementary hydrogen-bonding site.
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页码：830 / 832
页数：3
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