############################################################################### # Schulz, H.;Thiemann, K.H. (1977) # Solid State Communications 23, 815-819 # Crystal structure refinement of Al N and Ga N # # CIF by ICSD-for-WWW, Copyright 2003 FIZ-Karlsruhe & A.W.Hewat (hewat@ill.fr) # NOT TO BE PUBLISHED IN ANY FORM. See http://icsd.ill.fr/icsd/conditions.html ############################################################################### data_34476-ICSD _database_code_ICSD 34476 _audit_creation_date 1980-01-01 _chemical_name_systematic 'Gallium nitride' _chemical_formula_structural 'Ga N' _chemical_formula_sum 'Ga1 N1' _publ_section_title 'Ga1 N1' loop_ _citation_id _citation_journal_abbrev _citation_year _citation_journal_volume _citation_page_first _citation_page_last _citation_journal_id_ASTM primary 'Solid State Communications' 1977 23 815 819 SSCOA4 loop_ _publ_author_name Schulz, H.;Thiemann, K.H. _cell_length_a 3.190(1) _cell_length_b 3.190(1) _cell_length_c 5.189(1) _cell_angle_alpha 90. _cell_angle_beta 90. _cell_angle_gamma 120. _cell_volume 45.73 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P 63 m c' _symmetry_Int_Tables_number 186 _refine_ls_R_factor_all 0.026000 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 '-x, -x+y, z+1/2' 2 'x-y, -y, z+1/2' 3 'y, x, z+1/2' 4 'x-y, x, z+1/2' 5 'y, -x+y, z+1/2' 6 '-x, -y, z+1/2' 7 'x, x-y, z' 8 '-x+y, y, z' 9 '-y, -x, z' 10 '-x+y, -x, z' 11 '-y, x-y, z' 12 'x, y, z' loop_ _atom_type_symbol _atom_type_oxidation_number Ga3+ 3. N3- -3. loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_B_iso_or_equiv _atom_site_occupancy Ga1 Ga3+ 2 b -.3333 -.6667 0 0.0 1. N1 N3- 2 b -.3333 -.6667 0.377(1) 0.0 1. loop_ _atom_site_aniso_label _atom_site_aniso_type_symbol _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Ga1 Ga3+ 0.0052(2) 0.0052(2) 0.0027(2) 0.0026(1) 0 0 N1 N3- 0.0070(8) 0.0070(8) 0.0024(9) 0.0035(4) 0 0 #End of data_34476-ICSD