#------------------------------------------------------------------------------
#$Date: 2016-02-20 02:53:41 +0200 (Sat, 20 Feb 2016) $
#$Revision: 176768 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/02/2100257.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2100257
loop_
_publ_author_name
'Redhammer, G. J.'
'Tippelt, G.'
'Merz, M.'
'Roth, G.'
'Treutmann, W.'
'Amthauer, G.'
_publ_section_title
;
 Structure of the clinopyroxene-type compound CaCuGe₂O₆ between 15
 and 800K
;
_journal_coeditor_code           WS5021
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              367
_journal_page_last               380
_journal_paper_doi               10.1107/S0108768105013455
_journal_volume                  61
_journal_year                    2005
_chemical_formula_moiety         'Ca Cu Ge2 O6'
_chemical_formula_sum            'Ca Cu Ge2 O6'
_chemical_formula_weight         344.8
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 106.931(14)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.2453(12)
_cell_length_b                   9.2118(9)
_cell_length_c                   5.4115(7)
_cell_measurement_reflns_used    1683
_cell_measurement_temperature    717(2)
_cell_measurement_theta_max      27.8
_cell_measurement_theta_min      3.03
_cell_volume                     488.59(10)
_computing_cell_refinement       'Stoe X-Area (Stoe & Cie, 1998)'
_computing_data_collection       'Stoe X-Area (Stoe & Cie, 1998)'
_computing_data_reduction        'Stoe X-Area (Stoe & Cie, 1998)'
_computing_molecular_graphics    'Diamond 2.0e (Berndt & Brandenburg, 1996)'
_computing_publication_material  'WinGX 1.64.05 (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      873
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.884
_diffrn_measured_fraction_theta_max 0.884
_diffrn_measurement_device       '1-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS 1'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0478
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            1629
_diffrn_reflns_theta_full        27.8
_diffrn_reflns_theta_max         27.8
_diffrn_reflns_theta_min         3.03
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    17.542
_exptl_absorpt_correction_T_max  0.172
_exptl_absorpt_correction_T_min  0.102
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            'pale green'
_exptl_crystal_density_diffrn    4.688
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cuboid
_exptl_crystal_F_000             644
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.799
_refine_diff_density_min         -0.754
_refine_ls_extinction_coef       0.0057(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     48
_refine_ls_number_reflns         510
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_gt           0.0344
_refine_ls_shift/su_max          0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0471P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0851
_reflns_number_gt                392
_reflns_number_total             510
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ws5021.cif
_cod_data_source_block           cacu_717K
_cod_original_cell_volume        488.50(10)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2100257
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -y+1/2, z-1/2'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
Ca 0 0.3009(2) 0.25 0.0246(5) Uani d S 1 . . Ca
Cu 0 0.90652(14) 0.25 0.0183(3) Uani d S 1 . . Cu
Ge 0.28317(7) 0.09748(8) 0.21310(14) 0.0161(2) Uani d . 1 . . Ge
O1 0.1065(5) 0.0931(7) 0.1212(10) 0.0231(11) Uani d . 1 . . O
O2 0.3605(6) 0.2592(6) 0.3320(12) 0.0313(14) Uani d . 1 . . O
O3 0.3562(5) 0.0259(6) -0.0208(11) 0.0241(12) Uani d . 1 . . O
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
O O 0.0106 0.006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ca Ca 0.2262 0.3064 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Cu Cu 0.3201 1.2651 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ge Ge 0.1547 1.8001 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
O2 Ca O2 8_455 7_556 152.9(3)
O2 Ca O1 8_455 2 83.79(19)
O2 Ca O1 7_556 2 74.62(18)
O2 Ca O1 8_455 . 74.62(18)
O2 Ca O1 7_556 . 83.79(19)
O1 Ca O1 2 . 74.5(3)
O2 Ca O3 8_455 8_456 108.60(18)
O2 Ca O3 7_556 8_456 87.58(18)
O1 Ca O3 2 8_456 89.01(18)
O1 Ca O3 . 8_456 162.9(2)
O2 Ca O3 8_455 7 87.58(18)
O2 Ca O3 7_556 7 108.60(18)
O1 Ca O3 2 7 162.9(2)
O1 Ca O3 . 7 89.01(18)
O3 Ca O3 8_456 7 107.7(2)
O2 Ca O3 8_455 4 141.11(19)
O2 Ca O3 7_556 4 65.17(17)
O1 Ca O3 2 4 132.26(18)
O1 Ca O3 . 4 122.95(15)
O3 Ca O3 8_456 4 65.44(17)
O3 Ca O3 7 4 60.94(8)
O2 Ca O3 8_455 3_455 65.17(17)
O2 Ca O3 7_556 3_455 141.11(19)
O1 Ca O3 2 3_455 122.95(15)
O1 Ca O3 . 3_455 132.26(18)
O3 Ca O3 8_456 3_455 60.94(8)
O3 Ca O3 7 3_455 65.44(17)
O3 Ca O3 4 3_455 80.3(2)
O2 Ca Ge 8_455 7_556 172.75(16)
O2 Ca Ge 7_556 7_556 31.08(13)
O1 Ca Ge 2 7_556 102.74(12)
O1 Ca Ge . 7_556 103.85(11)
O3 Ca Ge 8_456 7_556 75.00(10)
O3 Ca Ge 7 7_556 85.30(11)
O3 Ca Ge 4 7_556 34.09(11)
O3 Ca Ge 3_455 7_556 112.74(13)
O2 Ca Ge 8_455 8_455 31.08(13)
O2 Ca Ge 7_556 8_455 172.75(16)
O1 Ca Ge 2 8_455 103.85(11)
O1 Ca Ge . 8_455 102.74(12)
O3 Ca Ge 8_456 8_455 85.30(11)
O3 Ca Ge 7 8_455 75.00(10)
O3 Ca Ge 4 8_455 112.74(13)
O3 Ca Ge 3_455 8_455 34.09(11)
Ge Ca Ge 7_556 8_455 146.41(8)
O2 Ca Cu 8_455 5_565 39.34(15)
O2 Ca Cu 7_556 5_565 120.18(16)
O1 Ca Cu 2 5_565 83.43(15)
O1 Ca Cu . 5_565 36.49(12)
O3 Ca Cu 8_456 5_565 147.59(10)
O3 Ca Cu 7 5_565 80.57(12)
O3 Ca Cu 4 5_565 138.84(13)
O3 Ca Cu 3_455 5_565 97.40(12)
Ge Ca Cu 7_556 5_565 137.40(3)
Ge Ca Cu 8_455 5_565 66.250(19)
O2 Ca Cu 8_455 5_566 120.18(16)
O2 Ca Cu 7_556 5_566 39.34(15)
O1 Ca Cu 2 5_566 36.49(12)
O1 Ca Cu . 5_566 83.43(15)
O3 Ca Cu 8_456 5_566 80.57(12)
O3 Ca Cu 7 5_566 147.59(10)
O3 Ca Cu 4 5_566 97.40(12)
O3 Ca Cu 3_455 5_566 138.84(13)
Ge Ca Cu 7_556 5_566 66.250(19)
Ge Ca Cu 8_455 5_566 137.40(3)
Cu Ca Cu 5_565 5_566 109.53(8)
O1 Cu O1 5_565 6_566 179.8(4)
O1 Cu O2 5_565 3_455 90.4(2)
O1 Cu O2 6_566 3_455 89.7(2)
O1 Cu O2 5_565 4 89.7(2)
O1 Cu O2 6_566 4 90.4(2)
O2 Cu O2 3_455 4 99.9(3)
O1 Cu O1 5_565 2_565 97.98(18)
O1 Cu O1 6_566 2_565 81.9(2)
O2 Cu O1 3_455 2_565 90.4(2)
O2 Cu O1 4 2_565 167.12(19)
O1 Cu O1 5_565 1_565 81.9(2)
O1 Cu O1 6_566 1_565 97.98(18)
O2 Cu O1 3_455 1_565 167.12(19)
O2 Cu O1 4 1_565 90.4(2)
O1 Cu O1 2_565 1_565 80.5(3)
O1 Cu Ca 5_565 5_565 46.04(16)
O1 Cu Ca 6_566 5_565 134.10(18)
O2 Cu Ca 3_455 5_565 87.82(17)
O2 Cu Ca 4 5_565 45.24(16)
O1 Cu Ca 2_565 5_565 143.93(12)
O1 Cu Ca 1_565 5_565 94.15(15)
O1 Cu Ca 5_565 5_566 134.10(18)
O1 Cu Ca 6_566 5_566 46.04(16)
O2 Cu Ca 3_455 5_566 45.24(16)
O2 Cu Ca 4 5_566 87.82(17)
O1 Cu Ca 2_565 5_566 94.15(15)
O1 Cu Ca 1_565 5_566 143.93(12)
Ca Cu Ca 5_565 5_566 109.53(8)
O1 Cu Ca 5_565 1_565 89.91(18)
O1 Cu Ca 6_566 1_565 89.91(18)
O2 Cu Ca 3_455 1_565 130.04(16)
O2 Cu Ca 4 1_565 130.04(16)
O1 Cu Ca 2_565 1_565 40.26(14)
O1 Cu Ca 1_565 1_565 40.26(14)
Ca Cu Ca 5_565 1_565 125.24(4)
Ca Cu Ca 5_566 1_565 125.24(4)
O2 Ge O1 . . 117.1(3)
O2 Ge O3 . . 110.1(3)
O1 Ge O3 . . 114.1(2)
O2 Ge O3 . 6_556 101.9(3)
O1 Ge O3 . 6_556 111.6(3)
O3 Ge O3 . 6_556 99.85(15)
O2 Ge Ca . 7_556 45.1(2)
O1 Ge Ca . 7_556 130.59(19)
O3 Ge Ca . 7_556 115.19(14)
O3 Ge Ca 6_556 7_556 56.84(18)
O2 Ge Ca . 3_545 116.1(2)
O1 Ge Ca . 3_545 126.4(2)
O3 Ge Ca . 3_545 49.92(18)
O3 Ge Ca 6_556 3_545 49.94(19)
Ca Ge Ca 7_556 3_545 85.18(5)
O2 Ge Ca . . 79.3(2)
O1 Ge Ca . . 38.41(19)
O3 Ge Ca . . 140.06(16)
O3 Ge Ca 6_556 . 116.47(18)
Ca Ge Ca 7_556 . 99.04(2)
Ca Ge Ca 3_545 . 159.74(6)
Ge O1 Cu . 5_565 120.7(3)
Ge O1 Cu . 1_545 119.2(3)
Cu O1 Cu 5_565 1_545 98.1(2)
Ge O1 Ca . . 115.0(3)
Cu O1 Ca 5_565 . 97.5(2)
Cu O1 Ca 1_545 . 102.5(2)
Ge O2 Cu . 3_545 138.1(4)
Ge O2 Ca . 7_556 103.8(3)
Cu O2 Ca 3_545 7_556 95.4(2)
Ge O3 Ge . 6 129.5(3)
Ge O3 Ca . 7 120.5(3)
Ge O3 Ca 6 7 99.2(3)
Ge O3 Ca . 3_545 100.0(2)
Ge O3 Ca 6 3_545 89.1(2)
Ca O3 Ca 7 3_545 114.56(17)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
Ca O2 8_455 2.363(6) ?
Ca O2 7_556 2.363(6) ?
Ca O1 2 2.405(6) ?
Ca O1 . 2.405(6) ?
Ca O3 8_456 2.705(6) ?
Ca O3 7 2.705(6) ?
Ca O3 4 2.712(6) ?
Ca O3 3_455 2.712(6) ?
Ca Ge 7_556 3.2391(9) ?
Ca Ge 8_455 3.2391(9) ?
Ca Cu 5_565 3.3124(16) ?
Ca Cu 5_566 3.3124(16) ?
Cu O1 5_565 1.987(5) ?
Cu O1 6_566 1.987(5) ?
Cu O2 3_455 2.109(6) ?
Cu O2 4 2.109(6) ?
Cu O1 2_565 2.253(6) ?
Cu O1 1_565 2.253(6) ?
Cu Ca 5_565 3.3124(16) ?
Cu Ca 5_566 3.3124(16) ?
Cu Ca 1_565 3.633(2) ?
Ge O2 . 1.722(5) ?
Ge O1 . 1.732(4) ?
Ge O3 . 1.774(6) ?
Ge O3 6_556 1.816(5) ?
Ge Ca 7_556 3.2391(9) ?
Ge Ca 3_545 3.4899(19) ?
O1 Cu 5_565 1.987(5) ?
O1 Cu 1_545 2.253(6) ?
O2 Cu 3_545 2.109(6) ?
O2 Ca 7_556 2.363(6) ?
O3 Ge 6 1.816(5) ?
O3 Ca 7 2.705(6) ?
O3 Ca 3_545 2.712(6) ?
