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Template-directed inorganic crystallization: oriented nucleation of barium sulfate under Langmuir monolayers of an aliphatic long chain phosphonate

Citation

Heywood, BR and Mann, Stephen, Template-directed inorganic crystallization: oriented nucleation of barium sulfate under Langmuir monolayers of an aliphatic long chain phosphonate, Langmuir, 8, (5) pp. 1492-1498. ISSN 0743-7463 (1992) [Refereed Article]

Copyright Statement

Copyright 1992 American Chemical Society

DOI: doi:10.1021/la00041a041

Abstract

Compressed Langmuir monolayers of an aliphatic long chain (C20) phosphonate were shown to influence the morphology and crystallographic orientation of barium sulfate nucleated from the aqueous subphase. The crystals were aligned with the [100] crystallographic axis perpendicular to the plane of the monolayer indicating that nucleation occurred on the (100) face. The majority of these oriented crystals exhibited a rhombic habit during the initial stages of crystallization. These subsequently developed into platelike or 'bow-tie' morphologies depending upon the growth mechanism under the monomolecular film. Occasionally, small polar laths oriented along the [100] axis were observed. For each of these crystal forms, nucleation on the (100) face and their subsequent development can be rationalized in terms of specific electrostatic, geometric and stereochemical interactions at the organic/inorganic interface.

Item Details

Item Type:Refereed Article
Keywords:aliphatic long chain phosphonates, barium sulfate, Langmuir monolayers, template-directed inorganic crystallization
Research Division:Chemical Sciences
Research Group:Physical Chemistry (incl. Structural)
Research Field:Structural Chemistry and Spectroscopy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Heywood, BR (Professor Brigid Heywood)
ID Code:104416
Year Published:1992
Web of Science® Times Cited:109
Deposited By:Research Division
Deposited On:2015-11-11
Last Modified:2015-12-21
Downloads:0

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