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Synthesis, IR Spectrum and Crystal Structure of a,a′-Dipyridyldi(iodineazide)/Synthesis, IR Spectrum and Crystal Structure of a,a′-Dipyridyldi(iodineazide)
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Abstract
The complex [a,a′-dipyridyl(IN3)2] can be prepared by reaction of a,a′-dipyridyl with iodine azide in CH2CI2 solution. It forms stable, yellow, moisture-sensitive crystals of melting point 73 °C. According to the IR spectrum the IN3 molecules are covalently bonded to the N atoms of the dipyridyl via the iodine atoms. The crystal structure determination was carried out by X-ray methods (2127 independent reflexions, R = 3.2%). The complex crystallizes in the space group P21/c with four formula units per unit cell, (a = 1299, b = 726, c -1647 pm; β = 96.1°). The IN3 molecules form linear bridges Nα-I-N to the nitrogen atoms of the pyridyl rings with bond lengths Nα-I 217 pm and Npyr-I 244 pm. The dihedral angle of the pyridyl rings is 63.4°.
Walter de Gruyter GmbH
Title: Synthesis, IR Spectrum and Crystal Structure of a,a′-Dipyridyldi(iodineazide)/Synthesis, IR Spectrum and Crystal Structure of a,a′-Dipyridyldi(iodineazide)
Description:
Abstract
The complex [a,a′-dipyridyl(IN3)2] can be prepared by reaction of a,a′-dipyridyl with iodine azide in CH2CI2 solution.
It forms stable, yellow, moisture-sensitive crystals of melting point 73 °C.
According to the IR spectrum the IN3 molecules are covalently bonded to the N atoms of the dipyridyl via the iodine atoms.
The crystal structure determination was carried out by X-ray methods (2127 independent reflexions, R = 3.
2%).
The complex crystallizes in the space group P21/c with four formula units per unit cell, (a = 1299, b = 726, c -1647 pm; β = 96.
1°).
The IN3 molecules form linear bridges Nα-I-N to the nitrogen atoms of the pyridyl rings with bond lengths Nα-I 217 pm and Npyr-I 244 pm.
The dihedral angle of the pyridyl rings is 63.
4°.
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