Kristallstruktur, Infrarot- und Ramanspektren sowie thermische Zersetzung von Magnesiumtetrahydrogendimesoperiodat, MgH4I2O10 · 6H2O
-
R. Nagel
Crystal structure, DRIFT, infrared and Raman spectra, and the results of thermal analyses of the hitherto wrongly as Mg(H4IO6)2 · 4H20 and Mg(IO4) · 8H2O described dimesoperiodate MgH4I2O10 · 6H2O and of the isostructural zinc compound are presented. The compounds crystallize in the monoclinic space group P21 (Z = 2) with a = 1071.0(2), b = 547.0(1), c = 1194.9(2) pm, and β = 112.58(3)° and a = 1073.3(3), b = 545.3(2), c = 1188.3(5) pm, and β = 112.52(3)°, respectively. The structure, which was refined from X-ray single crystal data of the magnesium compound (R1 = 2.72%, 3824 independet reflections), is built up from isolated distorted M(H2O)62+ octahedra and dimesoperiodate ions H4I2O102- connected by a network of hydrogen bonds formed by the H4I2O102- ions and six crystallographically different hydrate H2O molecules. The strength of the hydrogen bonds ranges from unusually weak bonds corresponding to uncoupled (isotopically dilute samples) OD stretching modes of > 2600cm-1 and very strong ones (νOD: < 2200 cm-1). The IO stretching modes of the transconfigurated H4I2O102- ions are assigned to terminal I-O groups (816 cm-1), I-OH groups (746 and 762cm-1) and bridging I-O groups (618 and 647cm-1). On heating, MgH4I2O10 · 6H2O undergoes dehydration in the range of 373 - 485 K (Differential Scanning Calorimetry) to two different polymorphs of magnesium metaperiodate (H4I2O102-→2IO4- + 2H2O). Anhydrous Mg(IO4)2 is instable. Above 423 K (high-temperature Raman data), it decomposes to magnesium iodates.
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
Articles in the same Issue
- Darstellung und Eigenschaften von Tetra(n-butyl)ammonium-cis-diacidooxophthalocyaninato( 2-)niobaten(V) und -tantalaten(V); Kristallstruktur von (nBu4N)CIS[Nb(F)2Opc2-]
- Metallkomplexe mit biologisch wichtigen Liganden, CXXI [1]. Orthopalladierte Enolate aus N-(Diphenylmethylen)-Schiff-Basen von a-Aminosäureestern als ambivalente 1,3-Dipole in [2+3]-Cycloadditionsreaktionen. Strukturen einer Reihe von Cycloaddukten
- Metallkomplexe mit biologisch wichtigen Liganden, CXX [1]. Halbsandwich-Komplexe von Ruthenium(II) und Iridium(III) mit 3-(3-Pyridyl)-D-alaninat
- Metallboranate und Boranatometallate, 25. 25Mg-Kernresonanzuntersuchungen an Magnesiumboranaten [1]
- Kristallstruktur, Infrarot- und Ramanspektren sowie thermische Zersetzung von Magnesiumtetrahydrogendimesoperiodat, MgH4I2O10 · 6H2O
- Kristallstrukturen, Schwingungsspektren und Normalkoordinatenanalyse von cis-(n-Bu4N)2[ReBr4(NCS)(SCN)], trans-(n-Bu4N)2[ReBr4(NCS)(SCN)] und trans-(n-Bu4N)2[ReBr4(NCSe)(SeCN)]
- Serendipitous Formation of the Cyclic Sulfite DIMTH(SO3) by Reaction of DIMTH(OH)2 with SOCl2
- Neue Tetraaminophosphonium-Salze durch Anionenaustausch in flüssigem Ammoniak
- The Crystal Structure of N,N′-Bis-(1,3-dihydroxy-2-methylprop-2-yl)- pyrazine-2,3-dicarboxamide Semihydrate
- β-Diketonates and their Analogs: Stabilization of the Dimeric M2{L}4(D)2 (M = Co, Ni) Core in the Complexes with Dimethyl-N-trichloroacetylamidophosphate {Cl3C(O)NP(O)(OCH3)2}-
- Synthesis and Electronic Spectra of Tricarbonylrhenium(I) Chloride Complexes with 9,10-Phenanthrenequinone and 9,10-Phenanthrenequinone Diimine as Acceptor Ligands
- Synthesis of Benzisochalcogenol and -azole Derivatives via ortho Metalation of Isophthalamides
- Synthesis, Reactions and Spectroscopy of 3-Benzoyl-6-phenylpyridazines of Expected Biological Activity
- Imidazole Nucleosides, V. Synthesis of 3′-Fluoro-3′-deoxy-ribofuranosides of 4(5)-Amino-imidazoIe-5(4)carboxamide
- Synthetic Potential Inherent in D-Isoascorbic Acid as a Precursor for Pyridazine and Furo[3,2-c]pyridazine Ring Systems with Two Asymmetric Centers
- Chiral Pool Synthesis of 4a-Substituted Carbocyclic Cyclopentanoid Nucleoside Precursors, I
- Chiral Pool Synthesis of 4a-Substituted Carbocyclic Cyclopentanoid Nucleoside Precursors, II
- Die Kristallstruktur von Bis(bromotriphenyl) arsen(V)-hexabromotellurat( IV), [Ph3AsBr]2[TeBr6]
- Darstellung und Kristallstruktur von Hexacaesium-hexatelluridodigermanat( III) (Cs6Ge2Te6)
Articles in the same Issue
- Darstellung und Eigenschaften von Tetra(n-butyl)ammonium-cis-diacidooxophthalocyaninato( 2-)niobaten(V) und -tantalaten(V); Kristallstruktur von (nBu4N)CIS[Nb(F)2Opc2-]
- Metallkomplexe mit biologisch wichtigen Liganden, CXXI [1]. Orthopalladierte Enolate aus N-(Diphenylmethylen)-Schiff-Basen von a-Aminosäureestern als ambivalente 1,3-Dipole in [2+3]-Cycloadditionsreaktionen. Strukturen einer Reihe von Cycloaddukten
- Metallkomplexe mit biologisch wichtigen Liganden, CXX [1]. Halbsandwich-Komplexe von Ruthenium(II) und Iridium(III) mit 3-(3-Pyridyl)-D-alaninat
- Metallboranate und Boranatometallate, 25. 25Mg-Kernresonanzuntersuchungen an Magnesiumboranaten [1]
- Kristallstruktur, Infrarot- und Ramanspektren sowie thermische Zersetzung von Magnesiumtetrahydrogendimesoperiodat, MgH4I2O10 · 6H2O
- Kristallstrukturen, Schwingungsspektren und Normalkoordinatenanalyse von cis-(n-Bu4N)2[ReBr4(NCS)(SCN)], trans-(n-Bu4N)2[ReBr4(NCS)(SCN)] und trans-(n-Bu4N)2[ReBr4(NCSe)(SeCN)]
- Serendipitous Formation of the Cyclic Sulfite DIMTH(SO3) by Reaction of DIMTH(OH)2 with SOCl2
- Neue Tetraaminophosphonium-Salze durch Anionenaustausch in flüssigem Ammoniak
- The Crystal Structure of N,N′-Bis-(1,3-dihydroxy-2-methylprop-2-yl)- pyrazine-2,3-dicarboxamide Semihydrate
- β-Diketonates and their Analogs: Stabilization of the Dimeric M2{L}4(D)2 (M = Co, Ni) Core in the Complexes with Dimethyl-N-trichloroacetylamidophosphate {Cl3C(O)NP(O)(OCH3)2}-
- Synthesis and Electronic Spectra of Tricarbonylrhenium(I) Chloride Complexes with 9,10-Phenanthrenequinone and 9,10-Phenanthrenequinone Diimine as Acceptor Ligands
- Synthesis of Benzisochalcogenol and -azole Derivatives via ortho Metalation of Isophthalamides
- Synthesis, Reactions and Spectroscopy of 3-Benzoyl-6-phenylpyridazines of Expected Biological Activity
- Imidazole Nucleosides, V. Synthesis of 3′-Fluoro-3′-deoxy-ribofuranosides of 4(5)-Amino-imidazoIe-5(4)carboxamide
- Synthetic Potential Inherent in D-Isoascorbic Acid as a Precursor for Pyridazine and Furo[3,2-c]pyridazine Ring Systems with Two Asymmetric Centers
- Chiral Pool Synthesis of 4a-Substituted Carbocyclic Cyclopentanoid Nucleoside Precursors, I
- Chiral Pool Synthesis of 4a-Substituted Carbocyclic Cyclopentanoid Nucleoside Precursors, II
- Die Kristallstruktur von Bis(bromotriphenyl) arsen(V)-hexabromotellurat( IV), [Ph3AsBr]2[TeBr6]
- Darstellung und Kristallstruktur von Hexacaesium-hexatelluridodigermanat( III) (Cs6Ge2Te6)
