ISSN:
1573-8779
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract An x-ray diffraction structural investigation was carried out on amphi-phenylglyoxime (PGO) and amphi-chloroglyoxime (CGO), which crystallizes as a monohydrate, on a diffractometer using λMoKα radiation. The structure of PGO was solved by the direct method using 745 reflections, R=0.029. The structure of CGO was solved using the direct method using 1397 reflections, R=0.031. The unit cell parameters of the triclinic crystals of PGO, C8H8N2O2, at 23°C are as follows: a=3.966(1), b=8.624(2), c=11.792(2) Å, α=91.04(3), β=97.17(3), γ=95.52(2)°, Z=2, space group P $$\bar 1$$ . The unit cell parameters of the triclinic cells of CGO, C2H3N2O2Cl·H2O, at 23°C are as follows: a=3.719(1), b=12.479(7), c=13.47(1) Å, α=70.76(7), β=82.09(8), γ=89.93(5)°, Z=4, space group P $$\bar 1$$ . The PGO and CGO molecules have amphi configuration of the dioxime fragments, in which the oxime group π-systems are conjugated. The molecules in both structures are associated by hydrogen bonds and form infinite chains in the PGO structure and infinite layers in the CGO layers.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00752797
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