Home Unsymmetrische BN23--Ionen in den Strukturen von Ca2ClBN2 und Sr2ClBN2 / Unsymmetric BN23--Ions in the Structures of Ca2ClBN2 and Sr2ClBN2
Article
Licensed
Unlicensed Requires Authentication

Unsymmetrische BN23--Ionen in den Strukturen von Ca2ClBN2 und Sr2ClBN2 / Unsymmetric BN23--Ions in the Structures of Ca2ClBN2 and Sr2ClBN2

  • Olaf Reckeweg and H.-Jürgen Meyer
Published/Copyright: June 2, 2014
Become an author with De Gruyter Brill

Abstract

The new compounds Ca2ClBN2 (1) and Sr2ClBN2 (2) were prepared from the respective metal, its dihalide and h-BN in sealed tantalum ampoules at 1200 °C. The crystals obtained were transparent yellow (1) and blue (2), respectively. The crystal structures were determined from single crystal X-ray data. Ca2ClBN2 and Sr2ClBN2 are isotypic and crystallize in the orthorhombic space group Pnma (No. 62), Z = 4 (Ca2ClBN 2: a = 1166.7(2), b = 390.26(4), c = 899.8(1) pm, R1 = 0.043, wR2 = 0.115 for 554 independent reflections; Sr2ClBN2: a = 1242.8(1), b = 416.75(4), c = 920.8(1) pm, R1 = 0.031, wR2 = 0.054 for 662 independent reflections).

The structures contain two different layers of M2+, Cl- and BN23- alternating along the [010] direction. The bond angles N-B-N are 177.2(4)° for (1) and 176,6(5)° for (2), the bond distances of the BN23- ions are dB_ N1] = 134.6(5) pm for (1), 136,3(7) pm for (2) and dB_N2 = 132.4(5) pm for (1) and 131,3(7) pm for (2). The unsymmetric structure of the BN23- ion, as is manifested particularly in the Sr compound (2), is caused by the coordination of N1 to four cations while N2 is coordinated only to three.

Received: 1996-11-12
Published Online: 2014-6-2
Published in Print: 1997-3-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

Articles in the same Issue

  1. Calorimetrie an Yttriumtrihalogeniden und Yttriumoxidhalogemden / Calorimetry of Yttrium Trihalides and Yttrium Oxyhalides
  2. Calorimetrie an Ammoniumyttriumhalogeniden / Calorimetry of Ammonium Yttrium Halides
  3. Kristallstrukturen, Schwingungsspektren und Normalkoordinatenanalysen von Tetrahalogenooxalatoosmaten (IV), [OsX4(ox)]2-, X = Cl, Br, I / Crystal Structures, Vibrational Spectra and Normal Coordinate Analyses of Tetrahalogenooxalatoosmates (IV), [OsX4(ox)]2-, X = Cl, Br, I
  4. The Phenomenon of Intramolecular Attractive S---O Interactions: Synthesis and Structure of (1,10-Phenanthroline)copper(II) Complexes with Isonitroso-(4-methylthiazol-2-yl)acetamide and Isonitroso-(4-methylthiazol-2-yl)-(benzothiazol-2-yl)methanide
  5. Direct Synthesis of Zinc and Nickel(II) Complexes with 1,4-Diazabicyclo[2.2.2]octane
  6. Crystal Structure of the Di-bromo-bis(2-dimethylaminoethanolato)(dimethylsulfoxide)-copper(II)-lead(II) Dimer Obtained by Direct Synthesis
  7. Unsymmetrische BN23--Ionen in den Strukturen von Ca2ClBN2 und Sr2ClBN2 / Unsymmetric BN23--Ions in the Structures of Ca2ClBN2 and Sr2ClBN2
  8. Bromierung von „Poly(1,4-diselenobenzol)“ / Bromination of “Poly(1,4-diselenobenzene)”
  9. Monoheteroarylborate [1] / Monoheteroarylborates [1]
  10. 1,3-Di-terf-butyl-6H-benzo[b]naphtho[1,2-d]pyran-6-thione, a Severely Helically Distorted Thionolactone-Bridged Biaryl
  11. Synthese und Struktur von Kalium-4,4-difluor-[1,3,2]dithiazetidinid-1,l,3,3-tetraoxid und Rubidium-4,4,5,5-tetrafluor-[1,3,2]dithiazolidinid-1,1,3,3-tetraoxid / Syntheses and Structure of Potassium-4,4-difluoro-[1,3,2]dithiazetidinide-1,1,3,3- tetraoxide and Rubidium-4,4,5,5-tetrafluoro-[ 1,3,2]dithiazolidinide-1,1,3,3-tetraoxide
  12. Synthese und Kristallstruktur eines Barium-Zink-Vanadyl-phosphats BaZn(VO)(PO4)2 mit [(VO)PO4]-Schichten / Synthesis and Crystal Structure of a Barium-Zinc-Vanadyl-Phosphate BaZn(VO)(PO4)2 Containing [(VO)PO4] Layers
  13. Einkernige und oxoverbrückte zweikernige Fe(III)-Komplexe von N-Alkyl-N,N-bis(2-pyridylmethyl)aminen / Mononuclear and Oxo-Bridged Binuclear Fe(III) Complexes of N-Alkyl-N,N-bis(2-pyridylmethyl)amines
  14. Diphenyl(1-pyridyl)phosphine Sulfide as a Ligand in Mono-and Binuclear Coinage Metal Complexes
  15. Röntgenstrukturuntersuchungen an Elpasolith-verwandten Hexacyanokomplexen [N(CH3)4]2A[M(CN)6] (A = Rb, Tl; M = Cr, Fe) / X-Ray Structure Investigations of Elpasolite Related Hexacyano Complexes [N(CH3)4]2A[M(CN)6] (A = Rb, Tl; M = Cr, Fe)
  16. Synthese und Kristallstruktur von Hexa(tert-butyl)bismocenium-tetrachloroaluminat / Synthesis and Crystal Structure of Hexa(tert-butyl)bismocenium Tetrachloroaluminate
  17. Über die Reaktionen von (CH3)4N+I-, (CH3)4N+ICl2-, (CH3)4N+ICl4- und (CH3)4N+Cl- mit Trifluormethylhypochlorit CF3OCl / The Reactions of (CH3)4N+I-, ( CH3)4N+ICl2-, (CH3)4N+ICl4- and (CH3)4N+Cl- with Trifluoromethylhypochlorite CF3OCl
  18. Hydrothermal Synthesis and Crystal Structure of the New Manganese(II) Thioantimonate(III), Mn(en)3Sb4S7
  19. Bondenolide, a New Diterpenoid from the Seeds of Caesalpinia bonduc
  20. Enzymatic Racemic Resolution of a Fluorinated Substrate and Syntheses of E and Z Alkenes as Precursors for Some Biologically Active Fluorohexoses
  21. Synthesis and Chiroptical Properties of Some N-(2-Chloro-7-cyclopropyl-4,7-dihydro-4-oxo-thieno[2,3-b]pyridine-5-carbonyl) L-α-Amino Esters
  22. Notizen: Synthesis of N,C,C-Trilithio-2,5-diallyl-pyrrole and its Solvent-Controlled Reactions with Electrophiles Notizen
  23. Notizen: A New Lithium Amide with Bulky Substituents -Molecular Structure of N-Lithio-N-trimethylsilyl-9-amino- 9-borabicyclo[3.3.1]nonane; Competition between N-Li and BN(pp)π Interactions
Downloaded on 29.10.2025 from https://www.degruyterbrill.com/document/doi/10.1515/znb-1997-0307/html
Scroll to top button