NCS2012 > Proceedings
NCS2012: Proceedings
Bulgarian Chemical Communications, Volume 45, Number 4, 2013
Contents
PREFACE
409
V. Krastev, G. K. Exner, 100 years of X-ray diffraction: from Röntgen’s
discovery to top-of-the-art synchrotron source applications. 411.
R. Nikolova, V. Kostov-Kytin, Crystal chemistry of “glaserite” type compounds.
418
M. Markova-Velichkova, S. Veleva, V. Tumbalev, L. Stoyanov, D. Nihtianova,
M. Mladenov, R. Raicheff, D. Kovacheva, XRD and TEM characterization
of the morphology of ZnO powders prepared by different methods. 427
K. V. Koleva, N. I. Velinov, T. S. Tsoncheva, I. G. Mitov, B. N. Kunev,
Preparation, structure and catalytic properties of ZnFe2О4.
434
H. I. Sbirkova, G. A. Radoslavov, P. I. Hristov, B. L. Shivachev,
Crystallographic conditions of the heterologically expressed recombinant
metal-binding protein Ts-PCHTP. 440
K. Kossev, H. Sbirkova, N. Petrova, B. Shivachev, R. Nikolova,
Crystal structure and properties of urea and thiourea adducts of tetraalkyl
ammonium hydrogen sulphate. 446
V. G. Petrov, S. D. Terzieva, Tz. I. Lazarova, V. Mikli, L. A. Andreeva, A.
K. Stoyanova-Ivanova, Corrosive changes and chemical composition of the
orthodontic archwires’ surface during treatment. 455
B. Shivachev,
DHA, a program for calculating hydrogen atom coordinates of solvent atom
involved in hydrogen bonding interactions. 461
L. T. Dimowa, S. L. Petrov, B. L. Shivachev, Natural and Zn exchanged
clinoptilolite: in situ high temperature XRD study of structural
behavior and cation positions. 466
M. Kuneva,
Surface phase detection of proton-exchanged layers in LiNbO3 and
LiTaO3 by IR reflection spectroscopy. 474
L. Dimowa, B. Shivachev, S. Petrov, Design and application of a
cost effective high temperature holder for in-situ powder X-ray
diffraction experiments. 479
R. S. Iordanova, A. D. Bachvarova-Nedelcheva, R. D. Gegova, Y. B. Dimitriev,
Synthesis and characterization of TeO2/TiO2 powders
obtained through Te (Vi) acid. 485
I. Piroeva, L. Dimowa, S. Atanasova-Vladimirova, N. Petrova, B. L. Shivachev,
Synthesis, structural and optical characterization of TeO2–GeO2–Nd2O3
glasses. 491
A. M. Stoyanova, H. Y. Hitkova, N. K. Ivanova, A. D. Bachvarova-Nedelcheva,
R. S. Iordanova, M. P. Sredkova, Photocatalytic and antibacterial activity of
Fe-doped TiO2 nanoparticles prepared by nonhydrolytic sol-gel method. 497
L. Dimowa, K. Kossev, H. I. Sbirkova, R. P. Nikolova, B. L. Shivachev,
Synthesis and crystal structure of oxonium
2,4,8,10-tetra-hydroxy-1,3,5,7,9,11-hexaoxa-2,4,6,8,10-penta-boraspiro[5.5]
undecan-6-uide hydrate. 505
I. Piroeva, S. Atanassova-Vladimirova, L. Dimowa, H. Sbirkova, G.
Radoslavov, P. Hristov, B. L. Shivachev, A simple and rapid scanning electron microscope
preparative technique for observation of biological samples: application on
bacteria and DNA samples. 510
L. Yotova, S. Yaneva,
Silica-based hybrid materials as biocompatible coatings for xenobiotics
sensors. 516
L. Tsvetanova, L. Dimowa, S. Ferdov, R. Nikolova, Crystal structures of
Cs+, Mg2+, Ba2+ ion
exchanged ETS-4 at RT and 150 K. 522
D. Marinkova, L. Yotova, D. Danalev, D. Stoykov, J.-M. Ringeard, M. Michiel,
S. Serfaty, P. Griesmar, Investigation of newly synthesized biocompatible
materials as biofilm carriers. 530
G. I. Patronov, I. P. Kostova, D. T. Tonchev, Study of zinc
borophosphate compositions doped with samarium and manganese. 536
K. Kossev, L. Tsvetanova, L. Dimowa, R. Nikolova, B. Shivachev,
Synthesis and crystal structure of magnesium chlorate dihydrate and
magnesium chlorate hexahydrate. 543
L. V. Nikolova,
Microstructure and texture analyses on spring steel. 549
A. Zaidan, Vl. Ivanova, P. Petkov, Ab initio simulation of
crystallization of amorphous Ge–Te–In system. 554
S. Uzova, A. Popov, V. Velev, T. Angelov, S. Mihaleva, Ch. Uzov,
Polycaprolactam crystal structure. I. Gamma–alpha polymorphic transition.
560
G. E. Chernev, E. V. Todorova, S. P. Djambazov, I. M. Miranda Salvado,
Structure of hybrid materials containing natural and synthetic organic
compounds. 568
S. Uzova, A. Popov, V. Velev, T. Angelov, S. Mihaleva, Ch. Uzov,
Polycaprolactam crystal structure. II. Crystal phase perfection. 575
H. Kolev, G. Tyuliev, C. Christov, K. L. Kostov, Experimental study of
the surface chemical composition of sea salt crystallized during evaporation
of seawater under natural conditions. 584
E. K. Salamanova, D. T. Tsoneva, A. D. Karshikoff,
Physical bases of thermal stability of proteins: A comparative study on
homologous pairs from mesophilic and thermophilic organisms. 592
B. V. Kostova, N. L. Petrova, V. Petkova, The high energy milling
effect on positional redistribution of CO3- ions in
the structure of sedimentary apatite. 601
P. Petkova, V. Nedkov, J. Tacheva, P. Vasilev, I. Dimitrov,
The structural distortion and Zeeman splitting of the complexes CrCl2(H2O)4
2+ and Cr(H2O)6 2+. 607
N. V. Kaneva, S. A. Siuleiman, A. S. Bojinova, K. I. Papazova, D. T.
Dimitrov, I. Gracheva, S. Karpova, V. A. Moshnikov, Nanosized composite thin
films of SiO2-ZnO for photocatalytic decomposition of organic
dyes – structure and characterization. 611
M. V. Gabrovska, R. M. Edreva-Kardjieva, D. D. Crişan, K. K. Tenchev, D. A.
Nikolova, M. Crişan, Structure and reducibility of the mixed metal
oxides obtained from Ni-Al layered double hydroxides. Catalytic activity in
CO2 methanation reaction. 617
L. K. Krasteva, K. I. Papazova, A. S. Bojinova, N. V. Kaneva, A. A.
Apostolov,
Synthesis and characterization of ZnO and TiO2 powders, nanowire
ZnO and TiO2/ZnO thin films for photocatalyc applications. 625
P. Petkova, P. Vasilev, I. Dimitrov, The behaviour of osmium ions
in the tetrahedral oxygen coordination. 631
N. Kaneva, A. Ponomareva, L. Krasteva, D. Dimitrov, A. Bojinova, K.
Papazova, G. Suchaneck, V. Moshnikov, Surface and photocatalytic properties of
nanostructured ZnO thin films doped with iron. 635
R. Vl. Gavrilova, R. I. Petkov, Researches on the structure and properties of
heat treated, nickel alloyed, molybdenum modified aluminum bronze. 644
S. A. Siuleiman, D. V. Raichev, A. S. Bojinova, D. T. Dimitrov, K. I.
Papazova,
Nanosized composite ZnO/TiO2 thin films for photocatalytic applications. 649
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