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Molecular structures and hypochromism of two purinophanes

✍ Scribed by Fumio Hama; Yoshiteru Sakata; Soichi Misumi

Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
218 KB
Volume
22
Category
Article
ISSN
0040-4039

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✦ Synopsis

The structures of purinophane 1 and its higher homolog 2 were determined by X-ray crystallographic analysis. Hypochromism of 1 and 2 in various media is reported.

πŸ“œ SIMILAR VOLUMES

Structure and hypochromism of (6,9) (9β€²,
Structure and hypochromism of (6,9) (9β€²,6β€²) purinophanes
✍ Fumio Hama; Yoshiteru Sakata; Soichi Misumi; Misako Aida; Chikayoshi Nagata πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 French βš– 202 KB

The.structure of the title compound la was determined to be a cross-stacking form with an interplanar distance of ca. 3.3 A by X-ray analysis. On the basis of this structure, the hypochromicity of la was calculated by the ASMO SCF CI method.

Synthesis and structure of triply bridge
Synthesis and structure of triply bridged purinophanes
✍ Kingo Akahori; Fumio Hama; Yoshiteru Sakata; Soichi Misumi πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 French βš– 249 KB

## Satisfactory elemental analyses were obtained. Crystal data: C20H24Hlo.3/4 H20, Mw=417.99, monoclinic, space group P21/n, a=13.428(1), b=15.578(1), c=9.509(1) A, S=95.15(1)0, V=1981.1(2) i3, 2=4, Ni-filtered Cu-Ka radiation, 2942 independent reflections with 2839 observed (I 230(I)), final R va