Home Proceedings   свалете версия във формат- PDF - version download СЪДЪРЖАНИЕ CONTENTS Two-dimensional pyrite crystals and aggregates from Elatsite deposit p.7 Radostina Atanassova Ccrystal structures of 6-O-acetylcodeine and N-methylcodeinium iodide p.11 R. Bakalska, T. Kolev, B. B. Koleva Crystal structures of codeinone and new adducts of codeinone with barbituric acids p.14 R. Bakalska, T. Kolev1, B. B. Koleva Functional formulae of the crystal class symmetry p.18 Pentcho K. Bonev Growth of first ever macrocrystals of MgSO3.6H2O – representative of rare crystallographic C3 class p. 21 Zhelyu Bunzarov, Tzanyo Kovachev, Todor Dimov, Ilia Ilev, Petya Petkova, Lyudmil Lyutov, Yuri Tzoukrovsky Crystal structures investigation by transmission electron microscopy: Modeling of structural changes process in crystals (invited) p. 23 Virgil Dimov Rietveld structure refinement of Zn-exchanged clinoptilolite p.27 Luiza Dimova, Georgi N. Kirov, Ognyan Petrov, Yana Tzvetanova, Nadejda Lihareva The new digital (image foil) Guinier camera in the Geological Institute, BAS: an introduction (invited) p.33 Thomas Kerestedjian Синтез и структурно охарактеризиране на уреати на магнезиеви соли за фитофармацефтични препарати p.36 Красимир Косев, Росица Петрова From symmetry statistics of minerals to their distribution in a Colour Table of the 32 classes of symmetry p. 39 Ruslan I. Kostov Structural information on Ca1-xSrxF2 single crystals obtained by X-Ray diffraction and transmission electron microscopy p.44 Bilyana Kostova, Ognyan Petrov, Virgil Dimov, Ludmil Konstantinov Нова цирконосиликатна фаза Na2ZrSi2O7.H2O с малък размер на порите. Синтез, характеристика, структурни особености и термично поведение 48 Владислав Костов-Китин, Росица Николова Technologies for the obtaining of optical waveguides in LiNbO3 and LiTaO3 52 Mariana Kuneva, Svetlen Tonchev Онтогения на ахатите – подходи и решения (поканен) 56 Михаил Малеев The influence of crystal structure on the position of cobalt and the color of cobalt containing silicates 64 Irena K. Mihailova, Dobrinka A. Stavrakeva, Lachezar N. Radev Transparent ceramics for laser active elements (invited) 68 Velin Nikolov, Iovka Koseva Investigation of Structural and Spectroscopic Properties of Nano-sized Natural Apatites 74 Vilma Petkova, Yuri Kalvachev, Ognyan Petrov The crystal chemistry, systematics and problem of mineral species formation in the eudialyte group (invited) 79 Ramiza K. Rastsvetaeva, Nikita V. Chukanov Structural features of Mn-analogue of raslakite (Na,H3O)15[Ca3Mn3]Na3Zr3(Si,Ti)[Si25O72OH](OH)2.2H2O – a new member of the eudialyte group from Lovozero, Kola Peninsula, Russia 83 Ramiza K. Rastsvetaeva, Nikita V. Chukanov, Sergei M. Aksenov Testing the potentialities of CaRIne Crystallography software to solve the contradictions in the information about cuprit crystal structure 86 Dobrinka A. Stavrakeva, Irena K. Mihailova Current state and application of SEM and EPMA in mineralogy, petrology and materials science research (invited) 90 Mihail Tarassov Qualifying the precision and accuracy of XRD apparatus with accounting for secondary extinction of a single reflection of textured sample 96 Ivan Tomov, Sasho Vassilev Criteria for verifying the precision and accuracy of XRD apparatus with technique accounting for secondary extinction in the intensities of a reflection pair of textured samples 102 I. Tomov, S. Vassilev, Peter Tzvetkov, J. Bonarski, L. Trakowski Variable counting time approach for powder diffraction data collection: influence on the accuracy of the structural parameters 107 Peter Tzvetkov, Daniela Kovacheva Pyroxene–amphibole transition: a case study from Madan base metal deposits 111 Rossitsa D. Vassileva Abstracts The synthesis of LaMoBO6 phase from glass 117 L. Aleksandrov, R. Iordanova, Y. Dimitriev, E. Halwax Enhancing access and services to East European users towards an efficient and coordinated Pan-European pool of NMR capacities to enable global collaborative research & boost technological advancements 118 P. Denkova, N. Vassilev, P. Tzvetkova, S. Simova Crystal structure of novel ruthenium complexes with 3-amino-2-chloropyridine designed as potential cytostatics 119 G. Georgieva, R. Petrova, B. Shivachev, G. Gencheva Nickel(II) and zinc(II) dimonensinates: Crystal structure and spectral properties 120 Ju. Ivanova, I. N. Pantcheva, M. Mitewa, S. Simova, H. Mayer-Figge, W. S. Scheldrick Experimental and theoretical investigation of the structure and nucleophilic properties of 4-aminocoumarine 121 V. Janevska, B. Shivachev, R. Petrova, G. Stojković, B. Stamboliyska, E. Popovski, B. Mikhova Crystal and molecular structures of some beryllium double salt hydrates. Hydrogen bond strength 122 V. Karadjova, M. Georgiev, D. Stoilova Molecular structures of coumarins and their metal complexes predicted from DFT study 123 Tz. Mihaylov, I. Georgieva, N. Trendafilova X-ray single crystal diffraction: the useful tool for structure determination of monensinates 124 I. N. Pantcheva, M. Mitewa, W. S. Sheldrick Crystal structures of chromates containing krцhnkite-type chains, K2Me(CrO4)2•2H2O (Me = Co, Ni, Zn, Cd). X-ray diffraction study 125 D. Stoilova, D. Marinova, M. Georgiev, M. Wildner Cation distribution in MgxZn1-x(HCOO)2•2H2O and MgxMn1-x(HCOO)2•2H2O mixed crystals. Single crystal X-ray diffraction and double matrix infrared spectroscopy 126 D. Stoilova, D. Marinova, R. Baggio Variation of the unit cell parameters of the ErBa2Cu3Oz ceramic in function of the oxygen content 127 Angelina Stoyanova-Ivanova, Stela Georgieva, Louiza Dimova, Boris Shivachev, Tsvetanka Nedeltcheva Synthesis and crystal structure of aminophosphonic acids 128 Petar Todorov, Emilia Naydenova, Boris Shivachev, Rosica Petrova Transition metal complexes with dimethyl(methylenoxyaryl)phosphine oxides-based ligands. Crystal and molecular structure of 1,4-bis(dimethylphosphinylmethyleneoxy)benzene and Copper(II) complex of 1,3-bis(dimethylphosphinylmethyleneoxy)benzene 129 D. Tsekova, R. Petrova, B. Shivachev, P. Gorolomova, V. Ilieva, S. Varbanov, G. Gencheva