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| Titel: |
STEREOCHEMISTRY OF SIX-COORDINATE OCTAHEDRAL SILICON(IV) COMPLEXES CONTAINING 2,2-BIPYRIDINE |
| Auteur: |
Liu, Hong Ling Ohmori, Yasuharu Kojima, Masaaki Yoshikawa, Yuzo |
| Verschenen in: |
Journal of coordination chemistry |
| Paginering: | Jaargang 44 (1998) nr. 3-4 pagina's 257-268 |
| Jaar: |
1998-07-01 |
| Inhoud: |
[Si(bpy)3]4+ (bpy = 2,2'-bipyridine), synthesized from Sil4 and 2'.-bipyndine. was optically resolved by a chromatographic method using an SP-Sephadex C-25 column as an adsorbent and a 0.16M aqueous solution of sodium (2R,3R)-(-)-O,O'-dibenzoyltartrate as an eluent. The optical isomers were characterized by measurement of their electronic absorption, circular dichroism, and 1H NMR spectra. The chromatographic resolution of [SKbpyb]4+ was also attempted with an aqueous solution of potassium [(2R,3R)-(+)-tartrato]antimonate(III). sodium (2R,3R)-(+)-hydrogentartrate, and sodium (2R,3R)-(+)-tartrate as eluents. Force-field calculations were used to elucidate the chromatographic elution mechanism. [Si(OH)2(bpy)2]I2was also synthesized from Sil4 and 2',-bipyridine. The optical resolution of this complex was achieved with sodium [(2R,3R)-(+)-tartrato]antimonate(III). |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 87 van 116 gevonden artikelen
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