TY - JOUR

T1 - Ionothermal synthesis and characterization of a layered propylene diammonium gallium phosphate, (C3H12N2) 6[Ga12P16O64] · 4.3 H 2O

AU - Lohmeier, Sven Jare

AU - Wiebcke, Michael

AU - Behrens, Peter

PY - 2007/11/30

Y1 - 2007/11/30

N2 - A new propylene-1,3-diammonium gallium phosphate of composition (C 3H12N2)6[Ga12P 16O64] · 4.3 H2O (LUH-1) was obtained by ionothermal synthesis using a deep-eutectic solvent (DES) composed of choline chloride and tetrahydro-2-pyrimidione as reaction medium. The structure-directing agent propylene-1,3-diammonium was generated in situ by the thermally induced decomposition of the amide component of the DES. Single-crystal X-ray structure analysis revealed that LUH-1 is built from macroanionic tetrahedral gallium phosphate layers and layers of interlamellar propylene-1,3-diammonium cations, with the latter exhibiting two-fold disorder. The one-dimensional 12-membered ring channel system is occupied by highly disordered water molecules. As indicated by thermogravimetry and powder X-ray diffraction the water molecules can be desorbed from LUH-1 at ca. 100°C with retention of the layered inorganic-organic hybrid structure. Crystal data for LUH-1: Trigonal system, space group P3̄ c1 (No. 165), Z = 1, a= 12.905(4), c = 18.317(8) Å, T = 297 K.

AB - A new propylene-1,3-diammonium gallium phosphate of composition (C 3H12N2)6[Ga12P 16O64] · 4.3 H2O (LUH-1) was obtained by ionothermal synthesis using a deep-eutectic solvent (DES) composed of choline chloride and tetrahydro-2-pyrimidione as reaction medium. The structure-directing agent propylene-1,3-diammonium was generated in situ by the thermally induced decomposition of the amide component of the DES. Single-crystal X-ray structure analysis revealed that LUH-1 is built from macroanionic tetrahedral gallium phosphate layers and layers of interlamellar propylene-1,3-diammonium cations, with the latter exhibiting two-fold disorder. The one-dimensional 12-membered ring channel system is occupied by highly disordered water molecules. As indicated by thermogravimetry and powder X-ray diffraction the water molecules can be desorbed from LUH-1 at ca. 100°C with retention of the layered inorganic-organic hybrid structure. Crystal data for LUH-1: Trigonal system, space group P3̄ c1 (No. 165), Z = 1, a= 12.905(4), c = 18.317(8) Å, T = 297 K.

KW - Crystal structure

KW - Deep eutectic solvent

KW - Gallium phosphate

KW - Ionothermal synthesis

KW - Structure-directed synthesis

UR - http://www.scopus.com/inward/record.url?scp=38149059819&partnerID=8YFLogxK

U2 - 10.1002/zaac.200700369

DO - 10.1002/zaac.200700369

M3 - Article

AN - SCOPUS:38149059819

VL - 634

SP - 147

EP - 152

JO - Zeitschrift fur Anorganische und Allgemeine Chemie

JF - Zeitschrift fur Anorganische und Allgemeine Chemie

SN - 0044-2313

IS - 1

ER -