caa a22 4500 378882279 CHVBK 20180305123434.0 cr unu---uuuuu 161128e20031101xx s 000 0 eng 10.1524/zkri.218.11.709.20301 doi (NATIONALLICENCE)gruyter-10.1524/zkri.218.11.709.20301 Urusov Vadim S. Theoretical analysis and empirical manifestation of the distortion theorem [Elektronische Daten] [Vadim S. Urusov] The distortion theorem is analyzed by the use of the Bond Valence Model for the case of an isolated coordination polyhedron with bonds of different lengths. It is shown that a correlation should exist between the average bond length increase and the mean-square deviation of individual bond lengths from the average one, at least for nonstrained crystal structures. It is proved that the correlation parameters are strongly dependent on a mode of distortion (symmetry of coordination environment). These conclusions are in general and sometimes in quantitative agreement with available experimental data, although in most cases the distortion of coordination polyhedra results from a variety of factors of chemical, geometric and electronic origin. It is assumed that an observed correlation between the average bond distance and the distortion degree may be taken as a measure of relative role of intrinsic bond strengths and influence of crystalline environment. © 2003 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/11(2003-11-01), 709-719 2194-4946 218:11<709 2003 218 zkri https://doi.org/10.1524/zkri.218.11.709.20301 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.218.11.709.20301 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Urusov Vadim S. NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/11(2003-11-01), 709-719 2194-4946 218:11<709 2003 218 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter