Heteronuclear Mn-Ca/Sr complexes, and Ca/Sr EXAFS spectral comparisons with the oxygen-evolving complex of photosystem II.
Mishra, Abhudaya; Yano, Junko; Pushkar, Yulia; Yachandra, Vittal K; Abboud, Khalil A; Christou, George; Chemical communications (Cambridge, England)  (2007) 1538–1540; doi:10.1039/b701355h

data_7101843
_publ_section_title
;
 Heteronuclear Mn-Ca/Sr complexes, and Ca/Sr EXAFS spectral comparisons
 with the oxygen-evolving complex of photosystem II.
;
_journal_issue                   15
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              1538
_journal_page_last               1540
_journal_paper_doi               10.1039/b701355h
_journal_year                    2007
_chemical_formula_sum            'C157 H141 Mn14 N14 O50 Sr'
_chemical_formula_weight         3880.62
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                69.789(2)
_cell_angle_beta                 78.549(2)
_cell_angle_gamma                73.792(2)
_cell_formula_units_Z            2
_cell_length_a                   18.4417(16)
_cell_length_b                   19.0430(16)
_cell_length_c                   25.447(2)
_cell_measurement_reflns_used    104
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      2.0
_cell_volume                     8001.2(12)
_computing_cell_refinement
'Bruker SMART v5.624 & SAINT 6.36a (Bruker 1998)'
_computing_data_collection       'Bruker SMART v5.624 (Bruker 1998)'
_computing_data_reduction        'Bruker SHELXTL v6.12 (Bruker 2000)'
_computing_molecular_graphics    'Bruker SHELXTL v6.12'
_computing_publication_material  'Bruker SHELXTL v6.12'
_computing_structure_refinement  'Bruker SHELXTL v6.12'
_computing_structure_solution    'Bruker SHELXTL v6.12'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.954
_diffrn_measured_fraction_theta_max 0.954
_diffrn_measurement_device_type  'SMART CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0954
_diffrn_reflns_av_sigmaI/netI    0.2917
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            52550
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.65
_diffrn_standards_decay_%        '< 1'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.482
_exptl_absorpt_correction_T_max  0.9698
_exptl_absorpt_correction_T_min  0.6701
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
'based on measured indexed crystal faces, Bruker SHELXTL v6.12 (Bruker 1998)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.611
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       plates
_exptl_crystal_F_000             3938
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.02
_refine_diff_density_max         3.853
_refine_diff_density_min         -1.365
_refine_diff_density_rms         0.139
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1750
_refine_ls_number_reflns         35042
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.2011
_refine_ls_R_factor_gt           0.0896
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0695P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2069
_refine_ls_wR_factor_ref         0.2247
_reflns_number_gt                11380
_reflns_number_total             35042
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b701355h.txt
_cod_data_source_block           Mn14Sr
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7101843