Unusual Bonding in Ternary Nitrides: Preparation, Structure and Properties of Ce2MnN3.
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Rainer Niewa
Ce2MnN3 was prepared by reaction of cerium nitride and manganese with nitrogen gas at 900 °C. It crystallizes isotypic to AC2MN3 (Ac = U, Th; M = Cr, Mn) and Ce2CrN3, space group Immm (No. 71), a = 3.74994(6) Å, b = 3.44450(6) Å and c = 12.4601(2) Å. The manganese atoms are coordinated in a nearly square planar fashion by four nitrogen atoms. These corner-connected MnN4 units form infinite 1∞[MnN2N2/2] chains, which run parallel to each other along the crystallographic a-axis, forming the motif of hexagonal rod packing. Cerium atoms connect the chains into a three-dimensional network. The results of measurements of the magnetic susceptibility, as well as of the electrical resistivity suggest metallic behavior. Electronic effects leading to shorter bonds between manganese and bridging nitrogen atoms than between manganese and terminal nitrogen atoms in the 1∞[MnN2N2/2] chains were investigated through extended Hückel and LMTO band structure calculations. Issues pertaining to stability of this and some other nitridometallate structures are discussed.
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Articles in the same Issue
- Titelei
- Contents
- Über CuDy2[B8O16] und CuHo2[B8O16]: Zwei neue „Metaborate“ mit einem ∞1[B8O16]8--Anion / On CuDy2[B8O16] and CuHo2[B8O16] Two New „Metaborates“ with a ∞1[B8O16]8-Anion
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- Synthesis and Structure of Li4GeS4a
- The Crystal Structure of the Potential Ferroelectric Calcium Rhenate(VI, VII) Ca11Re4O24 and its Relation to the Structure of Sr11Os4O24
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- Unusual Bonding in Ternary Nitrides: Preparation, Structure and Properties of Ce2MnN3.
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- Übergangsmetallkomplexe mit Nitroxidradikalen: Palladium-, Platin-, Pentamethylcyclopentadienyl-rhodium- und -iridium-Komplexe sowie α-Aminocarboxylatkomplexe mit Donor-haltigen Derivaten des 2,5-Dihydroimidazol-l-oxyls / Transition Metal Complexes of Nitroxide Radicals, Palladium, Platinum, Pentamethylcyclopentadienyl Rhodium and Iridium Complexes, and α-Aminocarboxylate Complexes with Derivatives of 2,5-Dihydroimidazole-l-oxyls
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- ERRATUM
Articles in the same Issue
- Titelei
- Contents
- Über CuDy2[B8O16] und CuHo2[B8O16]: Zwei neue „Metaborate“ mit einem ∞1[B8O16]8--Anion / On CuDy2[B8O16] and CuHo2[B8O16] Two New „Metaborates“ with a ∞1[B8O16]8-Anion
- CuHo2[B2O5]2: Ein unerwarteter Strukturtyp in der Reihe der Kupferlanthanoidborate / CuHo2[B2O5]2: An Unexpected Structure Type in the Series of Copper Lanthanoid Borates
- The Reaction of Bis[bis(trimethylsilyl)amino]germylene with Bromocyanogen and the Crystal Structure of Bis[bis(trimethylsilyl)amino]bromocyanogermane
- Schwingungsspektren und Normalkoordinatenanalyse von Hexathiocyanatoplatinat(IV), Kristallstruktur von [Py2CH2][Pt(SCN)6] / Vibrational Spectra and Normal Coordinate Analysis of Hexathiocyanatoplatinate(IV), Crystal Structure of [Py2CH2][Pt(SCN)6]
- Die Kristallstrukturen des Diphenylphosphinsäureamids, Ph2P(O)NH2, und seines Cäsiumsalzes [Cs{Ph2P(O)NH}] / Crystal Structures of Diphenylphosphinic Acid Amide, Ph2P(O)NH2, and of its Cesium Salt [Cs{Ph2P(O)NH}]
- Synthesis and Structure of Li4GeS4a
- The Crystal Structure of the Potential Ferroelectric Calcium Rhenate(VI, VII) Ca11Re4O24 and its Relation to the Structure of Sr11Os4O24
- Reaktivität nitrophenylsubstituierter cyclischer Amine bei Dehydrierungen / The Reactivity of Nitrophenyl Substituted Cyclic Amines with Dehydrogenations
- Zur Kristallchemie von Telluraten mit Mn2+ im kationischen und anionischen Teil der Kristallstruktur: (Mn2,4Cu0,6)TeO6, Ba2MnTeO6 und Pb(Mn0,5Te0,5 )O3 / On the Crystal Chemistry of Tellurates Containing Mn2+ in the Cationic and Anionic Part of the Crystal Structure: (Mn2,4Cu0,6)TeO6, Ba2MnTeO6 and Pb(Mn0,5Te0,5)O3
- Zur Kristallchemie der Kupfer(II)-ZinkteIlurate Cu5Zn4Te3O18 und Cu1,5Zn1,5TeO6, mit einer Notiz über Cu1,5Co1,5TeO6 / On the Crystal Chemistry of the Copper(II) Zinc Tellurates Cu5Zn4Te3O18 and Cu1,5Zn1,5TeO6 with a Note on Cu1,5Co1,5TeO6
- Magnetische Eigenschaften von [Cu{OCH2CH2N(C4H9)2}NCO]4 im Bereich von 10 bis 240 K / Magnetic Properties of [Cu{OCH2CH2N(C4H9)2}NCO]4 in the Temperature Range from 10 to 240 K
- Unusual Bonding in Ternary Nitrides: Preparation, Structure and Properties of Ce2MnN3.
- RbAsF6, CsAsF6 und RbSbF6: Kristallstrukturen, Thermische Phasenumwandlungen und Schwingungsspektren / RbAsF6, CsAsF6 and RbSbF6: Crystal Structures, Thermal Phase Transitions, and Vibrational Spectra
- Synthesis and Crystal Structure of a Novel Neutral Polymeric Lead(II)-thiosemicarbazonato Complex
- Untersuchungen an Polyhalogeniden, XXXIII [1] Polyiodide des Nickelhexamminkomplexes: Nickelhexamminbistriiodid [Ni(NH3)6](I3) 2 und Nickelhexamminbispentaiodid [Ni(NH3)6](I5)2 / Studies of Polyhalides, 33 [11 Polyiodides of the Nickel Hexammine Complex: Nickelhexammine Bistriiodide [Ni(NH3)6](I3) 2 and Nickelhexammine Bispentaiodide [Ni(NH3)6](I5)2
- Kristallstrukturen, 195Pt-NMR-Verschiebungen, Schwingungsspektren und Normalkoordinatenanalysen von trans-Dihalogeno-bis(oxalato)platinaten(IV), trans-[PtX2(ox)2]2-, X = Cl, Br, I / Crystal Structure, 195Pt NMR Chemical Shifts, Vibrational Spectra, and Normal Coordinate Analyses of trans-Dihalogeno-bis(oxalato)platinates(IV), trans-[PtX2(ox)2]2-, X = Cl, Br, I
- Übergangsmetallkomplexe mit Nitroxidradikalen: Palladium-, Platin-, Pentamethylcyclopentadienyl-rhodium- und -iridium-Komplexe sowie α-Aminocarboxylatkomplexe mit Donor-haltigen Derivaten des 2,5-Dihydroimidazol-l-oxyls / Transition Metal Complexes of Nitroxide Radicals, Palladium, Platinum, Pentamethylcyclopentadienyl Rhodium and Iridium Complexes, and α-Aminocarboxylate Complexes with Derivatives of 2,5-Dihydroimidazole-l-oxyls
- Zum System Sr/Mo/O: Phasendiagramm, Synthese und Charakterisierung der ternären Verbindungen / On the System Sr/Mo/O: Phase Diagram, Synthesis and Characterization of Ternary Compounds
- Synthese von Erdalkalimetallocenen aus Erdalkalimetall- bis[bis(trimethylsilyl)amid] und 6-Methyl-6-phenylfulven / Synthese von Erdalkalimetallocenen aus Erdalkalimetallbis[ bis(trimethylsilyl)amid] und 6-Methyl-6-phenylfulven Synthesis of Alkaline Earth Metallocenes from Alkaline Earth Metal Bis[bis(trimethylsilyl)amide] and 6 -Methyl-6 -phenylfulvene
- Enantioselective Catalysis, 122 [1] Synthesis of New Optically Active 3,5-DinitrosalicyloxazoIines
- ERRATUM