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Thermally Stable Heterocyclic Imines as New Potential Nonlinear Optical MaterialsIn the course of a search for new thermostable acentric nonlinear optical crystalline materials, several heterocyclic imine derivatives were designed, with the general structure D-pi-A(D'). Introduction of a donor amino group (D') into the acceptor moiety was expected to bring H-bonds into their crystal structures, and so to elevate their melting points and assist in an acentric molecular packing. Six heterocycle-containing compounds of this type were prepared, single crystals were grown for five of them, and these crystals were characterized by X-ray analysis. A significant melting temperature elevation was found for all of the synthesized compounds. Three of the compounds were also found to crystallize in acentric space groups. One of the acentric compounds is built as a three-dimensional H-bonded molecular network. In the other two compounds, with very similar molecular structure, the molecules form one-dimensional H-bonded head-to-head associates (chains). These chains are parallel in two different crystallographic directions and form very unusual interpenetrating chain patterns in an acentric crystal. Two of the compounds crystallized with centrosymmetric molecular packing.
Document ID
20040121120
Document Type
Reprint (Version printed in journal)
Authors
Nesterov, Volodymyr V. (New Mexico Highlands Univ. Las Vegas, NM, United States)
Antipin, Mikhail Y. (New Mexico Highlands Univ. Las Vegas, NM, United States)
Nesterov, Vladimir N. (New Mexico Highlands Univ. Las Vegas, NM, United States)
Moore, Craig E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Cardelino, Beatriz H. (Spelman Coll. Atlanta, GA, United States)
Timofeeva, Tatiana V. (New Mexico Highlands Univ. Las Vegas, NM, United States)
Date Acquired
August 22, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Journal of Physical Chemistry B
Volume: 108
Subject Category
Inorganic, Organic and Physical Chemistry
Distribution Limits
Public
Copyright
Other