Abstract
Chemical reactions between oxides of divalent metals and germanium in high-temperature alkaline solutions produce a large number of germanates differing in their composition and crystal structure. The specific compounds formed are determined by the physical- chemical conditions of synthesis (temperature, pH of the crystallization medium, solvent concentration, etc.) and by crystal-chemical factors which are most clearly revealed by the effects of the metals in the reactant oxides on the processes of the crystallization of germanates. This aspect is discussed in the present paper. The analysis of the phase diagrams given below takes into account structural crystal-chemical characteristics of individual components and makes it possible to formulate basic relationships for the formation of germanates of divalent metals, to find the roles played by mono- and divalent cations in the formation of final products of crystallization, and to reveal the general features characteristic of germanate systems.
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Literature Cited
I. M. Ismail-Zade and B. N. Litvin. Hydrothermal synthesis of single crystals of Na-Mn silicates and germanates. Azerb. Khim. Zhurn., 6, 135–140 (in Russian) (1969).
I. P. Kuzmina. Hydrothermal synthesis of Na(K) germanates and zinc germanates. Kristallografiya, 13, 854–858 (in Russian) (1968).
I. P. Kuzmina, B. N. Litvin, and V. S. Kurazhkovskaya. Hydrothermal synthesis of germanates. In: Processes of Crystallization in Hydrothermal Growth. Nauka, Moscow, 164–186 (in Russian) (1970).
A. N. Lobachev, I. P. Kuzmina, L. N. Demianets, V. V. Iljuchin, and N. V. Belov. Über der Rolle der Alkalimetal beim Aufbau der Silikate und Germanate under hydro- thermallen Bedingungen. Krist, und Tech., 5, 425–432 (1970).
L. N. Demianets, V. V. IPyukhin, I. P. Kuz‘mina, A. N. Lobachev, and N. V. Belov. On the role of alkali metals and germanium in hydrothermal crystallization of germanates. In: Growth of Crystals, 9, ed. N. N. Sheftap and E. T. Givargizov, Consultants Bureau, New York (1975).
L. N. Demianets and A. N. Lobachev. Synthesis of germanates in high-temperature alkaline solutions. In: Crystal Growth in High-Temperature Aqueous Solutions, Nauka, Moscow, 88–101 (in Russian) (1977).
N. G. Duderov, L. N. Demianets, and A. N. Lobachev. Hydrothermal crystallization of germanates of transition metals. In: Crystal Growth in High Temperature Aqueous Solutions, Nauka, Moscow, 102–119 (in Russian) (1977).
R. R. Neurgonkar, R. W. Wolfe, and R. E. Newnhman. Crystal data and crystal growth of ferroelastic PbgGeOg. J. Appl. Cryst., 7, 307–309 (1974).
R. E. Newnhman, R. W. Wolfe, and C. N. W. Darlington. Prototype structure of Pb5Ge3O11. J. Solid State Chem., 6, 378–383 (1973).
K. Sugii, H. Iwasaki, and S. Mayasawa. Crystal growth and optical properties of lead germanium oxide single crystals. J. Cryst. Growth, 10, 127–132 (1971).
A. N. Lazarev and V. A. Kolesova. IR absorption spectra of lead metasilicate and lead metagermanate. Izv, AN SSSR, Neorg. Mater, 6, 1445–1449 (in Russian) (1970).
G. Eulenberger, A. Wittman, and H. Nowotny. Germanate mit zweiwertigen Metallionen. Monatsh. Chem., 93, 1046–1054 (1962).
C. R. Robbins, A. Perloff, and S. Block. Crystal structure of BaGe[Ge3O9] and its relation to benitoite. J. Res. Nat. Bur. Stand., A70, 385 (1966).
V. I. Ponomarev, O. S. Filipenko, E. A. Pobedimskaya, and N. V. Belov. Crystal structure of BeGeO3 -H2O. Dokl AN SSSR, 584–587 (in Russian) (1974).
Yu. A. Malinovsky, E. A. Pobedimskaya, and N. V. Belov. Germanium carbonate- apatite Ba5[(Ge, C) (O,OH)4]3(OH). Synthesis and crystal structure. Kristallografiya 227, 644–646 (in Russian) (1975).
Yu. I. Smolin. Crystal structure of barium tetragermanate. Dokl. AN SSSR, 181, 595–598 (in Russian) (1968).
Yu. A. Malinovsky, E. A. Pobedimskaya, and N. A. Belov. Crystal structure of Ba2Ge9O2o(OH)2. Dokl AN SSSR, 227, 1350–1353 (in Russian) (1976).
Yu. A. Malinovsky, V. A. Kuznetsov, E. A. Pobedimskaya, and N. V. Belov. Hydro- thermal synthesis of barium silicates and germanates. In: Crystal Growth in High- Temperature Aqueous Solutions, Nauka, Moscow, 136–157 (in Russian) (1977).
Yu. A. Malinovsky. Synthesis and crystallographic analysis of a group of natural and synthesized barium silicates and germanates. Thesis, Moscow State University (1976).
H. Nowotny and G. Szekely. Über einige Germanate. — Monatsh. Chem., 83, 568–572 (1952).
T. N. Madezhina, E. A. Pobedimskaya, V. V. Ilyukhin, N. N. Kinishina, and N. V. Belov. Crystal structure of the second modification of strontium metagermanate. Dnkl. AN SSSR, 233, 1086–1089 (in Russian) (1977).
T.N. Nedezhina, E. A. Pobedimskaya, and N. V. Belov. Crystal structure of alkaline strontium germanate Na4SrGe3[GeO4]3O3. Kristallografiya, 19, 867–869 (in Russian) (1974).
E. L. Belokoneva, M. A. Simonov, N. G. Duberov, A. N. Lobachev, and N. V. Belov. Group of synthetic cadmium germanates and their X-ray analysis. Kristallografiya, 18, 973–977 (in Russian) (1973).
E. L. Belokoneva, Yu. A. Ivanov, M. A. Simonov, and N. V. Belov. Crystal structure of cadmium orthogermanate Cd2Ge04. Kristallografiya, 17, 217–219 (in Russian) (1972).
M. A. Simonov, E. L. Belokoneva, Yu. K. Yegorov-Tismenko, and N. V. Belov. Crystallochemical features of the structures of the cadmium group of germanates. Vestn. MGU, Ser.Geol. No. 3, 41–49 (in Russian) (1977).
E. L. Belokoneva, A. V. Arakcheeva, M. A. Simonov, and N. V. Belov. Crystal structure of CdGe2C5. Kristallografiya, 21, 303–306 (in Russian) (1976).
A. N. Kornev, L. N. Demianets, B. A. Maksimov, V. V. Ilyukhin, and N. V. Belov. Hydrothermal synthesis in the KCl-CdO-GeO2-H2O system and crystal structure of Cd2[Ge2O2]. Kristallografiya, 17, 289–291 (in Russian) (1972).
A. Novrotsky. Thermodynamic relations among olivine, spinel and phenacite structures in silicates and germanates: I. Volume relations in the system NiO-MgO-GeO2 and CoG-MgO-GeO2. J. Solid State Chem., 6, 21–41 (1973).
L. P. Otroshchenko and V. I. Simonov. Crystal structure of synthetic sodium- manganese metasilicate Na5(Mn, Na)3Mn[SigO2]. Dokl. AN SSSR, 208, 845–848 (in Russian) (1973).
L. P. Astakhova and V. I. Simonov. Determination of crystal structure of Na2Mn2Si2O7 by the method of superposition. Kristallografiya, 14, 3–8 (in Russian) (1969).
Ch’in Hang, M. A. Simonov, and N. V. Belov. Crystal structure of willemite Zn2[SiO4] and its germanium analog Zn2[GeO4]. Kristallografiya, 15, 457–460 (in Russian) (1970).
G. F. Plakhov, M. A. Simonov, and N. V. Belov. Crystal structure of zinc orthosilicate Na2Zn3[SiO4]2, phase F. Kristallografiya, 20, 46–51 (in Russian) (1975).
E, A. Kuz’min, V. V. Ilyukhin, and N. V. Belov. Crystal structure of synthetic Na-Zn germanate Na2ZnGeO4. Kristallografiya, 6, 978–979 (in Russian) (1968).
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Demianets, L.N., Duderov, N.G., Kuznetsov, V.A., Nadezhina, T.N. (1986). The Role Played By Me2+ in Hydrothermal Crystallization of Germanates of Divalent Metals. In: Givargizov, E.I. (eds) Growth of Crystals. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7119-3_27
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DOI: https://doi.org/10.1007/978-1-4615-7119-3_27
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