Die IR-Spektren einiger hydratisierter Permanganate

Zusammenfassung Es werden die IR-Spektren von Mg(MnO₄)₂·6H₂O, Ni(MnO₄)₂·6H₂O, Zn(MnO₄)₂·6H₂O und Cu(MnO₄)₂·2H₂O im Bereich 4000–600 cm^–1 untersucht und kurz besprochen. Auch früher angegebene IR-Daten für einige wasserfreie Permanganate wurden bestätigt.Der Einfluß der Aufnahmetechnik wird gezeigt und besprochen.Es wird festgestellt, das die Kationen keinen sichtbaren Einfluß auf die Schwingungen des MnO₄ ^–-Ion ausüben.

---

The IR spectra of Mg(MnO₄)₂·6H₂O, Ni(MnO₄)₂·6H₂O, Zn(MnO₄)₂·6H₂O and Cu(MnO₄)₂·2H₂O are presented and briefly discussed. Earlier published IR data for some anhydrous permanganates are also confirmed. Influence of the IR sampling techniques is shown and discussed. It was found that cations do not appreciably affect the caracteristic vibrations of the MnO₄ ^– ion.

---

---

Mit 2 Abbildungen     

IR-Spektren einiger wasserfreien fluoro-aluminate,-gallate und -indate

IR spectra of several hexa-, penta-and tetra-fluoro-metal-lates of aluminium, gallium and indium with several univalent cations together with hydrazinium(⁺1 and⁺2) were recorded from 4000 to 59 cm^?1. Site group and factor group vibrational analysis was performed for the compounds with known structures. Complete agreement between theory and experiment was found only in the case of tetragonal tetrafluorometallates. No splittings of the valence and deformation modes were observed with hexafluorometallates even in the caseof low symmetry. Splitting is characteristic for penta-and tetrafluoro compounds. In the case of hydrazinium fluorometallates octa-hedral coordination was additionaly proved on the basis of position of absorption bands. Weak hydrogen bonds were used for the explanation of the spectra of ammonium ion in the corresponding compounds.     

Tetramethylammonium-fluoroaluminate,-gallate und-indate

Four new compounds have been isolated from the systemMF₃?(CH₃)₄NF?HF?H₂O (M=Al, Ga, In) and investigated by thermal analysis and IR spectroscopy. Tetrahedral coordination of Al(III) in (CH₃)₄NAlF₄ seems most probable. This compound, the first known greater thermal stability than other dehydrates. IR spectra of all the other compounds may be interpreted on the basis of a distorted octahedral coordination.     

Die IR-Spektren einiger Arsenat-Halogen-Apatite

The infrared spectra of orthoarsenates with apatite structure, of the formulaM ₅(AsO₄)₃ X (M=Ca, Sr, Ba, Pb andX=F, Cl,Br) are measured and interpreted on the basis of a site-symmetry analysis. The influence of the different cations on the internal vibrations of the AsO₃ ⁴-ions is discussed.

     

Die IR-Spektren einiger Metavanadate mit tetraedrischer Vanadin-Koordination

The infrared spectra of the isostructuralMVO₃ compounds (M=K, Rb, Cs, Tl, NH₄), consisting in an array of infinite tetrahedral chains, are reported and discussed with the aid of a simplified factor group analysis. In the case of NH₄VO₃ also the laser-Raman spectrum was recorded and analyzed. Force constants, mean amplitudes of vibration and other bond properties for the terminal VO₂ groups, as well as for the VOV chain units are estimated.

---

---

17. Mitteilung der Reihe Orthovanadate und verwandte Verbindungen. 16. Mitt.:I. L. Botto undE. J. Baran, Z. anorg. allgem. Chem., im Druck; 15. Mitt.:E. J. Baran undI. L. Botto, Mh. Chem.107, 633 (1976).     

Die IR-Spektren einiger Doppeloxide des Typs MIISnO3

I.R. Spectra of Some Double Oxides of the Type M^IISnO₃ The double oxides MnSnO₃, CaSnO₃, and CdSnO₃, which crystallize in the ilmenite lattice as well as the perovskite modification of the two last mentioned compounds have been prepared and characterized by means of their infrared spectra. The spectra were interpreted and discussed in relation to the crystal structures and by comparison with those of related phases.     

IR-Spektren einiger Doppeloxide des Typs Te3MIVO8

I.R. Spectra of Some Double Oxides of the Type Te₃M^IVO₈ The infrared spectra of the phases Te₃M^IVO₈ (M^IV = Ti, Zr, Hf, Sn), structurally related to fluorite, have been recorded and discussed. It is shown that all the observed have a complex origin, and it is not possible to assign them to definite vibrations of the metal-oxygen polyhedra present in the lattices.     

Die IR-Spektren der Komplexe einiger zweiwertiger Metalle mit 8-Hydroxychinolin

Ohne Zusammenfassung     

Kristallchemisches Verhalten und IR-Spektren einiger Divanadate des Thortveitit-Typs und verwandter Strukturen

Crystal Chemistry and IR Spectra of Some Divanadates of the Thortveitit Type and Related Structures Some aspects of the crystal chemistry of divanadates of the type M₂V₂O₇ are discussed and comparisons are made with the corresponding diphosphates. Results of the X-ray investigation (powder method) of Cu₂V₂O₇, Mg₂V₂O₇, Co₂V₂O₇, Ni₂V₂O₇ and Zn₂V₂O₇ are also reported and commented. The infrared spectra of these compounds as well as those of Cd₂V₂O₇ and Mn₂V₂O₇ are recorded between 4000 and 300 cm^?1 and briefly discussed. The results show that the V₂O groups are subjected to relatively important distortions in the crystal lattices.     

Untersuchungen der Fluoro-metallate(III), 1. Mitt.: Hydrazinium(1+ und2+)-fluoro-aluminate,-gallate und-indate

Zusammenfassung Vier neue Hydraziniumfluorometallate des Galliums und zwei neue des Indiums sowie das schon bekannte Pentafluoroaluminat wurden erhalten. Bei deren Herstellung spielt die Konzentration des Hydrogenfluorids eine ausschlaggebende Rolle. Auf Grund IR-spektroskopischer Daten ist eine oktaedrische Koordination der Metall(III)-Ionen, in einigen Fällen unter Verknüpfung zu Ketten, am wahrscheinlichsten.

---

Fluoro metallates (III), I.: Hydrazinium(¹⁺ and²⁺)-fluoroaluminates,-gallates, and-indates

Four new gallium and two new indium compouds are described besides the already known hydrazinium(²⁺)-pentafluoraluminate. The concentration of hydrogen fluoride is shown to be of primary importance in their preparation. On the basis of IR spectra octahedral coordination of Me(III) ions seems to be most probable, in few cases these octahedra are joined through corners in chains.

---

---

Teil eines Referates auf dem II. Europäischen Fluor-Symposium in Göttingen, August 1968.     

IR-Spektren von Monofilamenten

Ohne Zusammenfassung     

IR-Spektren des p-Methylbenzamidoxims

Zusammenfassung Die IR-Spektren des p-Methylbenzamidoxims (pMB), des O-Benzoyl-pMB und des deuteriertenpMB (ND₂, OD) wurden in festem Zustand und in Lösung untersucht. Die Moleküle der festen und der gelösten Verbindungen sind durch Wasserstoffbindungen O–H...O verbrückt. Die Absorption der Valenzschwingungen der NH₂-Gruppe liegt im Bereichv _as=3505–3520 cm^–1,v _s=3370–3416 cm^–1. Die Valenzschwingungen der freien OH-Gruppe sind bei 3620 cm^–1 (in CCl₄), die der verbrückten OH-Gruppen—bei 3160–3280 cm^–1. Die KraftkonstantenF _NH, der N–H-Abstand und die Änderung der Positivladung am Stickstoffatom q wurden aus den IR-Daten berechnet.

---

IR-spectra of p-methyl benzamidoxime

The IR-spectra of p-methyl benzamidoxime (pMB), O-benzoyl-pMB and deuteratedpMB (ND₂, OD) were studied in the solid state and in solution. The molecules of the solid and of the dissolved compounds are bridged by hydrogen bondings O–H...O. The absorption of the valence vibrations of the group NH₂ are found to be in the rangev _as=3505–3520 cm^–1 andv _s=3370–3416 cm^–1. The valence vibrations of the free OH-group are found to be at 3620 cm^–1 (in CCl₄) and those of the bridged OH-groups at 3160–3280 cm^–1. The force constantsF _NH, the distance between the atoms N–H, and the change of the positive charge of the nitrogen atom q were calculated from IR-data.

     

Die IR-Spektren von Furan-, Pyrrol- und Thiophenderivaten

Ohne Zusammenfassung     

Die IR-Spektren von Kobalt-, Nickel- und Zink-Orthovanadat

Infrared spectra of crystalline Co₃(VO₄)₂, Ni₃(VO₄)₂ and Zn₃(VO₄)₂ as well as the laser-Raman spectrum of the last mentioned compound are reported and discussed. A series of solid solutions of the type (Zn/Ni)₃(VO₄)₂ have also been prepared and investigated, in order to obtain a wider insight into the spectroscopic behaviour of this class of compounds in the 500-250 cm^–1 region. Comparisons with the formerly investigated isotypic Mg₃(VO₄)₂ allows to confirm some of the earlier statements and assignments in the light of additional experimental information.

---

---

26. Mitt. der Reihe Orthovanadate und verwandte Verbindungen. 25. Mitt.:E. J. Baran, J. Mol. Struct., im Durck; 24. Mitt.:E. J. Baran undI. L. Botto; J. inorg. nucl. Chem., im Druck; 23. Mitt:M. E. Escobar undE. J. Baran, Z. anorg. allg. Chem., in Druck.     

Die IR-Spektren von Derivaten der Cyclohexadienone

Zusammenfassung Aus den IR-Spektren der untersuchten Verbindungen können die Einflüsse benachbarter Substituenten auf die Schwingungen der Carbonylgruppe studiert werden; ebenso werden die Substituenteneinflüsse auf die Schwingungen des quartären Kohlenstoffatoms in Cyclohexadienonen untersucht. Es wird weiter gezeigt, daß auch beim Ringsystem der Cyclohexadienone aus den -Frequenzen Rückschlüsse auf den Substitutionstyp am Ring gezogen werden können, wie dies von den aromatischen Ringsystemen her bekannt ist. Schließlich wird die Verschiebung der -C=O , -ungesättigter Ketone durch eine , -Doppelbindung untersucht, deren Ausmaß in der bisherigen Literatur allgemein als zu gering angenommen worden ist.Mit 1 Abbildung     

Die Aufnahme der IR-Spektren von Polymeren

Ohne Zusammenfassung     

Die Lage der C-H-Valenzschwingungen in den IR-Spektren

Ohne Zusammenfassung