#------------------------------------------------------------------------------
#$Date: 2008-03-04 17:31:11 +0000 (Tue, 04 Mar 2008) $
#$Revision: 226 $
#$URL: svn://www.crystallography.net/cod/cif/2/2003244.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_2003244
_journal_name_full     'Acta Crystallographica'
_journal_year          1995
_journal_volume    	C51
_journal_page_first    	341
_journal_page_last    	343
_publ_section_title
;
SrKB~5~O~9~
;
_chemical_formula_sum    	'B5 K O9 Sr'
_chemical_formula_weight    	324.76
loop_
    _symmetry_equiv_pos_as_xyz
    'x,y,z'
    'x,1/2-y,1/2+z'
    '-x,-y,-z'
    '-x,1/2+y,1/2-z'
_symmetry_space_group_name_H-M    	'P 21/c'
_cell_length_a    	6.676(1)
_cell_length_b    	7.969(2)
_cell_length_c    	14.259(2)
_cell_angle_alpha    90
_cell_angle_beta    	93.00(1)
_cell_angle_gamma    90
_cell_volume    	757.6(2)
_cell_formula_units_Z    	4
_exptl_crystal_density_diffrn    	2.847
_exptl_crystal_density_meas    	?
_diffrn_radiation_type    	'MoK\a'
_diffrn_radiation_wavelength    	0.71069
_cell_measurement_reflns_used    	19
_cell_measurement_theta_min    	15
_cell_measurement_theta_max    	18
_exptl_absorpt_coefficient_mu    	7.479
_cell_measurement_temperature    	296
_exptl_crystal_description    	'plate'
_exptl_crystal_size_max    	0.10(2)
_exptl_crystal_size_mid    	0.06(2)
_exptl_crystal_size_min    	0.03(2)
_exptl_crystal_size_rad    	?
_exptl_crystal_colour    	'colorless'
_chemical_compound_source   'grown from a melt of composition 1SrO:1K~2~O:4B~2'
_diffrn_measurement_device    	'Rigaku AFC-6R'
_diffrn_measurement_method    	'\w-2\q'
_exptl_absorpt_correction_type   'empirical (DIFABS; Walker & Stuart, 1983)'
_exptl_absorpt_correction_T_min    	0.73
_exptl_absorpt_correction_T_max    	1.00
_diffrn_reflns_number    	2544
_reflns_number_total    	2364
_reflns_number_observed    	1471
_reflns_observed_criterion    	F~o~^2^>=3\s(F~o~^2^)
_diffrn_reflns_av_R_equivalents    	0.058
_diffrn_reflns_theta_max    	37.5
_diffrn_reflns_limit_h_min    	0
_diffrn_reflns_limit_h_max    	9
_diffrn_reflns_limit_k_min    	0
_diffrn_reflns_limit_k_max    	11
_diffrn_reflns_limit_l_min    	-20
_diffrn_reflns_limit_l_max    	20
_diffrn_standards_number    	3
_diffrn_standards_interval_count    	200
_diffrn_standards_interval_time    	?
_diffrn_standards_decay_%    	'approx. 5.0'
_refine_ls_structure_factor_coef    	F
_refine_ls_R_factor_obs    	0.044
_refine_ls_wR_factor_obs    	0.048
_refine_ls_goodness_of_fit_obs    	1.27
_refine_ls_number_reflns    	1471
_refine_ls_number_parameters    	145
_refine_ls_hydrogen_treatment    	?
_refine_ls_weighting_scheme    	'1/\s^2^(F~o~)'
_refine_ls_shift/esd_max    	0.03
_refine_diff_density_max    	0.87
_refine_diff_density_min    	0.71
_refine_ls_extinction_method    	'Zachariasen (1967)'
_refine_ls_extinction_coef    	0.78E-7(3)
_atom_type_scat_source    	'IntTabIV'
loop_
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    _atom_site_U_iso_or_equiv
    Sr .9218(1) .0151(9) .2392(4) 0.0095(3)
    K .5022(2) -.1540(2) .4007(1) 0.0175(6)
    O1 .0917(6) -.2020(6) .3467(3) 0.015(3)
    O2 .3608(6) .1784(6) .4131(3) 0.014(3)
    O3 .8729(6) -.1729(6) .4726(3) 0.017(3)
    O4 .6717(6) .1674(6) .3420(3) 0.013(3)
    O5 .2223(6) -.0468(6) .1353(3) 0.013(3)
    O6 .2089(6) -.2678(6) .5026(3) 0.017(3)
    O7 .0191(6) .2366(6) .3690(3) 0.014(3)
    O8 .5547(6) -.0999(6) .1974(3) 0.017(3)
    O9 .3591(6) .1312(6) .2470(3) 0.015(3)
    B1 .383(1) -.007(1) .1942(4) 0.014(3)
    B2 .807(1) .2799(9) .3975(5) 0.014(3)
    B3 .463(1) .215(1) .3270(5) 0.013(4)
    B4 .833(1) -.1979(9) .5644(5) 0.015(4)
    B5 .062(1) -.217(1) .4387(5) 0.015(4)