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#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/2005892.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_2005892
_journal_name_full  'Acta Crystallographica'
_journal_year       1997
_journal_volume    	C53
_journal_page_first    	128
_journal_page_last    	130
_publ_section_title    	
;
Diguanidinium Hexafluorosilicate
;
_chemical_formula_moiety    	'[C(NH~2~)~3~]~2~SiF~6~'
_chemical_formula_sum    	'C2 H12 F6 N6 Si'
_chemical_formula_structural  '[NH~2~C(NH~2~)~2~]~2~^+^SiF~6~^2-^'
_chemical_formula_analytical    	?
_chemical_formula_weight    	262.27
_symmetry_cell_setting    	monoclinic
loop_
_symmetry_equiv_pos_as_xyz
    'x, y, z'
    '-x, y, -z'
    'x+1/2, y+1/2, z'
    '-x+1/2, y+1/2, -z'
    '-x, -y, -z'
    'x, -y, z'
    '-x+1/2, -y+1/2, -z'
    'x+1/2, -y+1/2, z'
_symmetry_space_group_name_H-M    	'C 2/m'
_cell_length_a    	12.600(3)
_cell_length_b    	7.258(1)
_cell_length_c    	6.162(1)
_cell_angle_alpha    	90.00
_cell_angle_beta    	114.49(3)
_cell_angle_gamma    	90.00
_cell_volume    	512.8(2)
_cell_formula_units_Z    	2
_exptl_crystal_density_diffrn    	1.698
_cell_measurement_temperature    	293(2)
loop_
_atom_site_label
_atom_site_occupancy
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
    Si 1 0.0000 0.0000 0.0000 0.0276(2)
    F1 1 -0.01623(6) 0.16438(11) 0.1766(2) 0.0415(2)
    F2 1 0.14496(8) 0.0000 0.1630(2) 0.0385(3)
    N2 1 0.61924(15) 0.0000 0.2735(4) 0.0408(4)
    C1 1 0.72359(14) 0.0000 0.2692(3) 0.0293(3)
    N1 1 0.77580(11) 0.1579(2) 0.2703(2) 0.0371(3)
    H11 1 0.7393(14) 0.2556(28) 0.2556(29) 0.051(5)
    H12 1 0.8419(17) 0.1556(30) 0.2662(32) 0.064(6)
    H21 1 0.5849(15) -.1035(29) 0.2572(30) 0.058(5)