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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/09/16 22:08:25」(JST)
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Isostructural chemical compounds have similar chemical structures. Isomorphous when used in the relation to crystal structures is essentially synonymous.[1] The IUCR definition[2] used by crystallographers is:-
Two crystals are said to be isostructural if they have the same structure, but not necessarily the same cell dimensions nor the same chemical composition, and with a 'comparable' variability in the atomic coordinates to that of the cell dimensions and chemical composition. For instance, calcite CaCO3, sodium nitrate NaNO3 and iron borate FeBO3 are isostructural. One also speaks of isostructural series, or of isostructural polymorphs or isostructural phase transitions. The term isotypic is synonymous with isostructural.
Examples include:
- I-Gold(I) bromide is isostructural with gold(I) chloride
- Borazine is isostructural with benzene
- Indium(I) bromide is isostructural with β-thallium(I) iodide and has a distorted rock salt structure.
Many minerals are isostructural when they differ only in the nature of a cation.
Compounds which are isoelectronic usually have similar chemical structures. For example, methane, CH4, and the ammonium ion, NH4+, are isoelectric and are isostructural as both have a tetrahedral structure. The C-H and N-H bond lengths are different and crystal structures are completely different because the ammonium ion only occurs in salts.
References
- ^ Wells, A.F (1962). Structural Inorganic Chemistry (3rd. ed.). Oxford: Clarendon Press. ISBN 0-19-855125-8. p 182
- ^ IUCR Online Dictionary of CRYSTALLOGRAPHY, "Isostructural crystals", [1]
English Journal
- Anomalous bulk compression behaviour in a hyperstoichiometric uranium-dioxide-thorium-dioxide solid solution.
- Tschauner O, Ma C, Grubor-Urosevic O, Chen YJ.SourceHigh Pressure Science and Engineering Center, UNLV, NV, USA. Department of Geoscience, UNLV, NV, USA. Department of Physics, UNLV, NV, USA.
- Journal of physics. Condensed matter : an Institute of Physics journal.J Phys Condens Matter.2013 Apr 24;25(16):162201. doi: 10.1088/0953-8984/25/16/162201. Epub 2013 Mar 18.
- The compression behaviour of a solid solution of ThO2 and hyperstoichiometric UO2 was examined up to 11 GPa hydrostatic pressure using x-ray diffraction. We observed a distortive phase transition above 3 GPa from fluorite-type to a structure isotypic with t-zirconia. The transition is tentatively
- PMID 23503105
- Simultaneously defining cell phenotypes, cell cycle, and chromatin modifications at single-cell resolution.
- Chambliss AB, Wu PH, Chen WC, Sun SX, Wirtz D.Source*Department of Chemical and Biomolecular Engineering, †Physical Sciences-Oncology Center, ‡Institute for NanoBioTechnology, and §Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland, USA.
- FASEB journal : official publication of the Federation of American Societies for Experimental Biology.FASEB J.2013 Mar 28. [Epub ahead of print]
- Heterogeneity of cellular phenotypes in asynchronous cell populations placed in the same biochemical and biophysical environment may depend on cell cycle and chromatin modifications; however, no current method can measure these properties at single-cell resolution simultaneously and in situ. Here, w
- PMID 23538711
- Comparisons of Plutonium, Thorium, and Cerium Tellurite Sulfates.
- Lin J, Cross JN, Diwu J, Meredith NA, Albrecht-Schmitt TE.SourceDepartment of Chemistry and Biochemistry, Florida State University , 95 Chieftan Way, 310 DLC, Tallahassee, Florida 32306, United States.
- Inorganic chemistry.Inorg Chem.2013 Mar 25. [Epub ahead of print]
- The hydrothermal reaction of PuCl3 or CeCl3 with TeO2 in the presence of sulfuric acid under the comparable conditions results in the crystallization of Pu(TeO3)(SO4) or Ce2(Te2O5)(SO4)2, respectively. Pu(TeO3)(SO4) and its isotypic compound Th(TeO3)(SO4) are characterized by a neutral layer structu
- PMID 23527700
Japanese Journal
- PREPARATION AND STRUCTURE OF THE YTTRIUM PHOSPHATE DIHYDRATE YPO<SUB>4</SUB>·2H<SUB>2</SUB>O
- Ivashkevich Ludmila S.,Lyakhov Alexander S.,Selevich Anatoly F.
- Phosphorus Research Bulletin 28(0), 45-50, 2013
- … The crystal structure of YPO<SUB>4</SUB>·2H<SUB>2</SUB>O is compared with that of isotypic Y<SUB>1-x</SUB>(Gd,Dy,Er)<SUB>x</SUB>PO<SUB>4</SUB>·2H<SUB>2</SUB>O (x = 0.053), investigated earlier. …
- NAID 130004502168
- Neutron Diffraction Analysis of a Single-Crystal Structure of Rb0.51Tl0.49H2PO4
- Oh In-Hwan,Meven Martin,Heger Gernot [他],Lee Kwang-Sei
- J Phys Soc Jpn 80(8), 084602-084602-5, 2011-08-15
- … The crystal structure of the title compound, i.e., Rb0.51Tl0.49H2PO4, is isotypic to TlH2PO4, having partially disordered H atoms in strong symmetric O…H…O hydrogen bonds. …
- NAID 150000090114
- 高い結晶性と純度を有する多孔性"貴金属"錯体の新合成法
- 松永 諭,Matsunaga Satoshi,狭田 謙一,Hasada Ken-ichi,杉浦 健志,Sugiura Kenji,森 和亮,Mori Wasuke
- Science Journal of Kanagawa University 22, 23-28, 2011-06-30
- … X-ray powder diffraction (XRPD) data showed RhCu-DMF and RhZn-DMF to be isotypic with the structure of [Cu2(BDC)2] before desolvation. … RhCu-EeOH was isotypic with that of [Cu2(BDC)2] re-solvated with EtOH. …
- NAID 120003207240
Related Links
- Isotypic definition, of or pertaining to an isotype. See more. Thesaurus Translator Reference Word of the Day Blog Slideshows Apps by Dictionary My Account Log Out Log In follow Dictionary.com Dictionary Thesaurus Translator ...
- Definition of isotypic in the Medical Dictionary. isotypic explanation. Information about isotypic in Free online English dictionary. What is isotypic? Meaning of isotypic medical term. What does isotypic mean? Printer Friendly forum ...
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アイソタイプ、イソタイプ
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- isotype、isotypic
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- B細胞の抗体をコードする遺伝子の再構成で起こる現象の1つ。