Synthesis and comparative study of three monomeric boronates by spectroscopic methods and X-ray crystallography
Article Abstract:
Reaction of tridentate azomethine ligands made from salicylaldehyde with phenylboronic acid has resulted in synthesis of three boronates. The three resulting heterobicyclic structures have been characterized by NMR spectroscopy and X-ray crystallography. The most stable is the (4.4.0) heterobicycle, while the (5.4.0) and the (4.3.0) heterobicycles are less so. Contrary to expectation, the salicylideneaminoethanol derivative does not lead in the direction of a macrocyclic structure. Nevertheless, molecular modeling shows high ring strain for the resulting product, a monomeric one.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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Mixed anion effect in sodium thiocyanate + sodium thiosulfate + water systems
Article Abstract:
A significant mixed anion effect has been seen in the temperature range 293.15-323.15 K in sodium thiocyanate/sodium thiosulfate/water systems in a study of densities and viscosities and deviations in the transport property as functions of temperature and mole fraction. The mixed anion effect is gone at about R = 0.0106.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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Synthesis of cis-p-dioxano-12-crown-4 and X-ray crystallography of the (1:1) complex with lithium thiocyanate
Article Abstract:
Stereospecific synthesis of cis-p-dioxano-12-crown-4 has been carried out. X-ray crystallography data for the (1:1) complex with lithium thiocyanate (LiNCS) have been accumulated. The cis-syn-cis-dicyclohexano-12C4 analogue in a (1:1) complex with LiNCS forms crystals with asymmetric arrangement.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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