#------------------------------------------------------------------------------
#$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/40/2104036.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_2104036
loop_
_publ_author_name
'Redhammer, Günther J.'
'Ohashi, Haruo'
'Roth, Georg'
_publ_section_title
;
 Single-crystal structure refinement of NaTiSi₂O₆ clinopyroxene at
 low temperatures (298<T<100K)
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              730
_journal_page_last               746
_journal_paper_doi               10.1107/S0108768103022018
_journal_volume                  59
_journal_year                    2003
_chemical_formula_moiety         'O6 Na1 Si2 Ti1'
_chemical_formula_sum            'Na O6 Si2 Ti'
_chemical_formula_weight         223.07
_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                 106.83(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.708(3)
_cell_length_b                   8.8718(15)
_cell_length_c                   5.3014(14)
_cell_measurement_reflns_used    2123
_cell_measurement_temperature    200.0(10)
_cell_measurement_theta_max      31.85
_cell_measurement_theta_min      2.1
_cell_volume                     437.0(2)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-AREA'
_computing_structure_refinement  'shelxl-97 (sheldrick, 1997b)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997a)'
_diffrn_measured_fraction_theta_full 0.902
_diffrn_measured_fraction_theta_max 0.902
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_type           mok\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0265
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            2329
_diffrn_reflns_theta_full        31.71
_diffrn_reflns_theta_max         31.71
_diffrn_reflns_theta_min         3.17
_exptl_absorpt_coefficient_mu    2.554
_exptl_absorpt_correction_T_max  0.748
_exptl_absorpt_correction_T_min  0.632
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'via equivalents'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    3.39
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             436
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.391
_refine_ls_extinction_coef       0.0132(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.21
_refine_ls_matrix_type           full
_refine_ls_number_parameters     48
_refine_ls_number_reflns         671
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.21
_refine_ls_R_factor_gt           0.0214
_refine_ls_shift/su_max          0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0238P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0465
_reflns_number_gt                589
_reflns_number_total             671
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ws5001.cif
_cod_data_source_block           200
_cod_original_cell_volume        437.05(18)
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'Na1 O6 Si2 Ti1'
_cod_database_code               2104036
_cod_database_fobs_code          2104036
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_type_symbol
Na 0 0.30170(10) 0.25 0.01105(17) Uani d S 1 Na
Ti 0 0.90245(4) 0.25 0.00370(8) Uani d S 1 Ti
Si 0.29207(3) 0.08931(4) 0.24111(6) 0.00329(9) Uani d . 1 Si
O1 0.11694(9) 0.07936(11) 0.14617(17) 0.00481(17) Uani d . 1 O
O2 0.36101(9) 0.25304(12) 0.30414(18) 0.00680(19) Uani d . 1 O
O3 0.35206(9) 0.00826(11) 0.01557(17) 0.00578(17) 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
Na Na 0.0362 0.0249 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ti Ti 0.2776 0.4457 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.0817 0.0704 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.006 '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 Na O2 8_455 7_556 156.73(7)
O2 Na O1 8_455 2 83.82(4)
O2 Na O1 7_556 2 77.21(4)
O2 Na O1 8_455 . 77.21(4)
O2 Na O1 7_556 . 83.82(4)
O1 Na O1 2 . 70.64(5)
O2 Na O3 8_455 4 137.12(4)
O2 Na O3 7_556 4 64.58(4)
O1 Na O3 2 4 138.08(3)
O1 Na O3 . 4 118.93(3)
O2 Na O3 8_455 3_455 64.58(4)
O2 Na O3 7_556 3_455 137.12(4)
O1 Na O3 2 3_455 118.93(3)
O1 Na O3 . 3_455 138.08(3)
O3 Na O3 4 3_455 82.40(5)
O2 Na O3 8_455 7 81.55(3)
O2 Na O3 7_556 7 112.74(3)
O1 Na O3 2 7 159.37(4)
O1 Na O3 . 7 91.91(3)
O3 Na O3 4 7 59.86(2)
O3 Na O3 3_455 7 66.94(4)
O2 Na O3 8_455 8_456 112.74(3)
O2 Na O3 7_556 8_456 81.55(3)
O1 Na O3 2 8_456 91.91(3)
O1 Na O3 . 8_456 159.37(4)
O3 Na O3 4 8_456 66.94(4)
O3 Na O3 3_455 8_456 59.86(2)
O3 Na O3 7 8_456 107.13(5)
O2 Na Si 8_455 7_556 168.67(3)
O2 Na Si 7_556 7_556 31.63(3)
O1 Na Si 2 7_556 107.10(3)
O1 Na Si . 7_556 103.18(3)
O3 Na Si 4 7_556 32.97(2)
O3 Na Si 3_455 7_556 110.95(4)
O3 Na Si 7 7_556 87.11(3)
O3 Na Si 8_456 7_556 70.75(3)
O2 Na Si 8_455 8_455 31.63(3)
O2 Na Si 7_556 8_455 168.67(3)
O1 Na Si 2 8_455 103.18(3)
O1 Na Si . 8_455 107.10(3)
O3 Na Si 4 8_455 110.95(4)
O3 Na Si 3_455 8_455 32.97(2)
O3 Na Si 7 8_455 70.75(3)
O3 Na Si 8_456 8_455 87.11(3)
Si Na Si 7_556 8_455 142.68(4)
O2 Na Ti 8_455 5_565 37.78(3)
O2 Na Ti 7_556 5_565 124.25(4)
O1 Na Ti 2 5_565 80.79(3)
O1 Na Ti . 5_565 40.49(2)
O3 Na Ti 4 5_565 134.82(2)
O3 Na Ti 3_455 5_565 98.29(3)
O3 Na Ti 7 5_565 78.74(2)
O3 Na Ti 8_456 5_565 149.941(19)
Si Na Ti 7_556 5_565 139.276(17)
Si Na Ti 8_455 5_565 66.616(18)
O2 Na Ti 8_455 5_566 124.25(4)
O2 Na Ti 7_556 5_566 37.78(3)
O1 Na Ti 2 5_566 40.49(2)
O1 Na Ti . 5_566 80.79(3)
O3 Na Ti 4 5_566 98.29(3)
O3 Na Ti 3_455 5_566 134.82(2)
O3 Na Ti 7 5_566 149.941(19)
O3 Na Ti 8_456 5_566 78.74(2)
Si Na Ti 7_556 5_566 66.617(18)
Si Na Ti 8_455 5_566 139.276(17)
Ti Na Ti 5_565 5_566 111.31(3)
O2 Ti O2 3_455 4 95.47(6)
O2 Ti O1 3_455 5_565 90.15(4)
O2 Ti O1 4 5_565 95.82(4)
O2 Ti O1 3_455 6_566 95.82(4)
O2 Ti O1 4 6_566 90.15(4)
O1 Ti O1 5_565 6_566 171.12(6)
O2 Ti O1 3_455 1_565 170.03(4)
O2 Ti O1 4 1_565 91.12(4)
O1 Ti O1 5_565 1_565 81.74(4)
O1 Ti O1 6_566 1_565 91.61(4)
O2 Ti O1 3_455 2_565 91.12(4)
O2 Ti O1 4 2_565 170.03(4)
O1 Ti O1 5_565 2_565 91.61(4)
O1 Ti O1 6_566 2_565 81.74(4)
O1 Ti O1 1_565 2_565 83.37(6)
O2 Ti Ti 3_455 5_576 94.58(3)
O2 Ti Ti 4 5_576 130.96(3)
O1 Ti Ti 5_565 5_576 132.01(3)
O1 Ti Ti 6_566 5_576 41.07(3)
O1 Ti Ti 1_565 5_576 86.67(3)
O1 Ti Ti 2_565 5_576 40.67(3)
O2 Ti Ti 3_455 5_575 130.96(3)
O2 Ti Ti 4 5_575 94.58(3)
O1 Ti Ti 5_565 5_575 41.07(3)
O1 Ti Ti 6_566 5_575 132.01(3)
O1 Ti Ti 1_565 5_575 40.67(3)
O1 Ti Ti 2_565 5_575 86.67(3)
Ti Ti Ti 5_576 5_575 113.71(3)
O2 Ti Na 3_455 5_565 84.52(3)
O2 Ti Na 4 5_565 48.45(3)
O1 Ti Na 5_565 5_565 48.85(3)
O1 Ti Na 6_566 5_565 138.19(3)
O1 Ti Na 1_565 5_565 94.36(3)
O1 Ti Na 2_565 5_565 140.06(3)
Ti Ti Na 5_576 5_565 178.799(19)
Ti Ti Na 5_575 5_565 67.49(2)
O2 Ti Na 3_455 5_566 48.45(3)
O2 Ti Na 4 5_566 84.52(3)
O1 Ti Na 5_565 5_566 138.19(3)
O1 Ti Na 6_566 5_566 48.85(3)
O1 Ti Na 1_565 5_566 140.06(3)
O1 Ti Na 2_565 5_566 94.36(3)
Ti Ti Na 5_576 5_566 67.49(2)
Ti Ti Na 5_575 5_566 178.799(19)
Na Ti Na 5_565 5_566 111.31(3)
O2 Ti Na 3_455 1_565 132.27(3)
O2 Ti Na 4 1_565 132.27(3)
O1 Ti Na 5_565 1_565 85.56(3)
O1 Ti Na 6_566 1_565 85.56(3)
O1 Ti Na 1_565 1_565 41.69(3)
O1 Ti Na 2_565 1_565 41.69(3)
Ti Ti Na 5_576 1_565 56.856(13)
Ti Ti Na 5_575 1_565 56.856(13)
Na Ti Na 5_565 1_565 124.345(16)
Na Ti Na 5_566 1_565 124.345(16)
O2 Si O1 . . 116.82(5)
O2 Si O3 . . 109.65(5)
O1 Si O3 . . 108.06(5)
O2 Si O3 . 6_556 105.91(5)
O1 Si O3 . 6_556 108.34(5)
O3 Si O3 . 6_556 107.71(4)
O2 Si Na . 7_556 52.40(4)
O1 Si Na . 7_556 131.33(4)
O3 Si Na . 7_556 120.32(4)
O3 Si Na 6_556 7_556 53.55(4)
O2 Si Na . 3_545 119.47(4)
O1 Si Na . 3_545 123.42(4)
O3 Si Na . 3_545 46.78(4)
O3 Si Na 6_556 3_545 60.97(4)
Na Si Na 7_556 3_545 89.24(3)
O2 Si Na . . 78.12(4)
O1 Si Na . . 40.39(4)
O3 Si Na . . 136.33(4)
O3 Si Na 6_556 . 111.11(4)
Na Si Na 7_556 . 98.85(2)
Na Si Na 3_545 . 161.57(3)
Si O1 Ti . 5_565 121.48(5)
Si O1 Ti . 1_545 123.63(5)
Ti O1 Ti 5_565 1_545 98.26(4)
Si O1 Na . . 113.71(5)
Ti O1 Na 5_565 . 90.66(4)
Ti O1 Na 1_545 . 102.99(4)
Si O2 Ti . 3_545 147.79(6)
Si O2 Na . 7_556 95.97(5)
Ti O2 Na 3_545 7_556 93.78(4)
Si O3 Si . 6 139.90(6)
Si O3 Na . 3_545 103.84(5)
Si O3 Na 6 3_545 93.49(5)
Si O3 Na . 7 116.02(5)
Si O3 Na 6 7 88.53(4)
Na O3 Na 3_545 7 113.06(4)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
Na O2 8_455 2.4077(11)
Na O2 7_556 2.4077(11)
Na O1 2 2.4175(12)
Na O1 . 2.4175(12)
Na O3 4 2.4356(12)
Na O3 3_455 2.4356(12)
Na O3 7 2.8386(12)
Na O3 8_456 2.8386(12)
Na Si 7_556 3.0224(9)
Na Si 8_455 3.0224(9)
Na Ti 5_565 3.2104(8)
Na Ti 5_566 3.2104(8)
Ti O2 3_455 1.9709(10)
Ti O2 4 1.9709(10)
Ti O1 5_565 2.0846(11)
Ti O1 6_566 2.0846(11)
Ti O1 1_565 2.1017(10)
Ti O1 2_565 2.1017(10)
Ti Ti 5_576 3.1658(7)
Ti Ti 5_575 3.1658(7)
Ti Na 5_565 3.2104(8)
Ti Na 5_566 3.2104(8)
Ti Na 1_565 3.5421(12)
Si O2 . 1.5938(11)
Si O1 . 1.6298(10)
Si O3 . 1.6398(10)
Si O3 6_556 1.6477(10)
Si Na 7_556 3.0224(9)
Si Na 3_545 3.2454(9)
O1 Ti 5_565 2.0846(11)
O1 Ti 1_545 2.1017(10)
O2 Ti 3_545 1.9709(10)
O2 Na 7_556 2.4077(11)
O3 Si 6 1.6477(10)
O3 Na 3_545 2.4356(12)
O3 Na 7 2.8386(12)
