Enhancing the Magnetic Anisotropy of Cyano-Ligated Chromium(II) and Chromium(III) Complexes via Heavy Halide Ligand Effects
Hemamala I. Karunadasa; Kristine D. Arquero; Louise A. Berben; Jeffrey R. Long; Inorganic Chemistry 49 (2010) 4738–4740; doi:10.1021/ic1002995

data_4315633
_publ_contact_author
;
        Jeffrey R. Long
        Department of Chemistry
        University of California, Berkeley
        United States of America
;
_publ_contact_author_email       jrlong@berkeley.edu
_publ_contact_author_fax         '510 642-8369'
_publ_contact_author_phone       '510 642-0860'
_publ_section_title
;
 Enhancing the Magnetic Anisotropy of Cyano-Ligated Chromium(II) and
 Chromium(III) Complexes via Heavy Halide Ligand Effects
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4738
_journal_page_last               4740
_journal_paper_doi               10.1021/ic1002995
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C14 H28 Br2 Cr N O P4'
_chemical_formula_weight         562.07
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           21
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2 2'
_symmetry_space_group_name_H-M   'C 2 2 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.159(5)
_cell_length_b                   13.400(7)
_cell_length_c                   10.661(5)
_cell_measurement_reflns_used    1077
_cell_measurement_temperature    149(2)
_cell_measurement_theta_max      51.486
_cell_measurement_theta_min      7.645
_cell_volume                     1308.4(12)
_computing_cell_refinement       'Bruker SAINT v6.36'
_computing_data_collection       'Bruker SMART v5.054d'
_computing_data_reduction        'Bruker SAINT v6.36'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      149(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'Bruker SMART CCD'
_diffrn_measurement_method       \w/2\q-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  0.0210
_diffrn_reflns_av_sigmaI/netI    0.0321
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3139
_diffrn_reflns_theta_full        26.31
_diffrn_reflns_theta_max         26.31
_diffrn_reflns_theta_min         3.59
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.737
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.847299
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_density_meas      1.337
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             562
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.06
_platon_squeeze_details
;
;
_refine_diff_density_max         0.615
_refine_diff_density_min         -0.298
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.52(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.158
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     56
_refine_ls_number_reflns         1256
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.181
_refine_ls_R_factor_all          0.0492
_refine_ls_R_factor_gt           0.0367
_refine_ls_shift/su_max          0.180
_refine_ls_shift/su_mean         0.036
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0638P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1108
_reflns_number_gt                990
_reflns_number_total             1256
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic1002995_si_002_5.cif
_cod_data_source_block           hk110a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4315633