T N Guru Row
Articles written in Journal of Chemical Sciences
Volume 92 Issue 4-5 August 1983 pp 379-384 Crystallography
Accurate x-ray and neutron studies have demonstrated that atomic deformations due to chemical bonding can be reliably mapped. Several new mathematical techniques which have been devised to obtain quantitative information from these maps are discussed along with their relative merits and demerits. Methods of obtaining theoretical densities modified to resemble the experimental framework are explained. The implications of these modified models are outlined.
Volume 93 Issue 3 April 1984 pp 271-282 Structural Chemistry
The flexibility of the bicyclo[2.2.1]heptane-based tricyclic bridged system in longifolene is analysed based on x-ray structural data. In this context, the molecular structure of three differently substituted longifolenes has been analysed. The highly substituentdependent conformation provides scope for the synthesis of a variety of commercially oriented products.
Volume 97 Issue 2 September 1986 pp 209-211 Rapid Communications
MULTAN is the most widely used package for structure determination. However, there are situations where even after utilizing all possible built-in routes the solution is not reached and these become “difficult structures”. If such a structure (a) has one or more heavy atoms, (b) is “chicken-wire” with predominant aromatic character, (c) has weak diffraction data, the new approaches discussed will lead to a unique structure solution by introducing simple, economic and time saving ideas into the MULTAN package.
Volume 100 Issue 1 February 1988 pp 39-44 Organic
The crystal structure of C12OH20 (lR-6R-4R-2 R-3,7,7-trimethyl-4-(2-hydroxyethyl) bicyclo [4.1.0] hept-2-ene) has been determined by X-ray diffraction. The compound crystallizes in space group P212121 with
Volume 113 Issue 5-6 October 2001 pp 435-444
Structure determination by powder X-ray diffraction data has gone through a recent surge since it has become important to get to the structural information of materials which do not yield good quality single crystals. Although the method of structure completion when once the starting model is provided is facile through the Rietveld refinement technique, the structure solution
Volume 115 Issue 5-6 October 2003 pp 473-490
The crystal structure of ferroelastic Rb4Li(HSO4)3(SO4) has been determined at two temperatures, which indicates a structural phase transition, tetragonal P43 with
Volume 118 Issue 1 January 2006 pp 7-7
Volume 118 Issue 1 January 2006 pp 43-46
The compound Bi3W2O10.5 was synthesized by the solid-state technique from Bi2O3 and WO3 in stoichiometric quantities. Single crystals were grown by the melt-cooling technique and the crystal structure was solved in the tetragonal
Volume 122 Issue 5 September 2010 pp 677-685
Six crystal structures of substituted 2-chloroquinoline derivatives have been analysed to evaluate the role of Cl atom as a self recognizing unit resulting in the formation of Cl…Cl and C-H…Cl interactions to generate supramolecular assembly in the solid state. The features of Type I and Type II geometries associated with Cl…Cl interactions have been analysed to show directional preferences leading to differences in the packing motifs in these crystal structures. C-H…Cl interactions are generated exclusively in structures depicting Type II Cl…Cl interaction have been observed in these structures.
Volume 126 Issue 5 September 2014 pp 1241-1248 Special issue on Chemical Crystallography
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