Original scientific paper

The Crystal and Molecular Structure of 3-(Pyridyl-2')- imidazo-[1,i-a] Pyridine

L. Golič ; Chemistry Department, E. Kardelj University, 61001 Ljubljana, Slovenia, P.O.B. 537, Yugoslavia
I. Leban ; Chemistry Department, E. Kardelj University, 61001 Ljubljana, Slovenia, P.O.B. 537, Yugoslavia
B. Stanovnik ; Chemistry Department, E. Kardelj University, 61001 Ljubljana, Slovenia, P.O.B. 537, Yugoslavia
M. Tišler ; Chemistry Department, E. Kardelj University, 61001 Ljubljana, Slovenia, P.O.B. 537, Yugoslavia
A. Tomažić ; Chemistry Department, E. Kardelj University, 61001 Ljubljana, Slovenia, P.O.B. 537, Yugoslavia

Abstract

The crystal structure of 3:.(pyridyl-2')-imidazo-[l,5-a] pyridine
has been determined using three-dimensional MoK a diffractometer
data. The crystal data at 293 (1) K are as follows: C12H0Na, Mr=
= 195.23, orthorhombic, P212121 (No. 19), a = 0.5107(1), b = 1.3076(2},
c = 1.4343(3) nm, V = 0.9578 nm3, Dm = 1.37(5), Dx = 1.354 Mg · m-3,
Z = 4. The structure has been solved with direct methods and
refined by full-matrix least-squares techniques to R and Rw values
of 0.085 and 0.080, respectively, for 641 contributing reflexions. The
crystal structure consists of discrete molecules. Most of the bond
lengths and angles are within normal ranges for aromatic heterocyclic
systems. The dihedral angle between the pyridine and imidazo-
pyridine parts of the molecule is 3.8°; thus the molecule is
planar to within 7 pm owing to two weak C-H .. . N interactions.

Keywords

Hrčak ID:

194536

URI

https://hrcak.srce.hr/194536

Publication date:

15.11.1980.

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