Synthesis, Characterization, and Structure of [GaCl3(NHC)] Complexes
Marion, Nicolas; Escudero-Adán, Eduardo C.; Benet-Buchholz, Jordi; Stevens, Edwin D.; Fensterbank, Louis; Malacria, Max; Nolan, Steven P.; Organometallics 26 (2007) 3256–; doi:10.1021/om070241g

data_4073328
_publ_section_title
;
 Synthesis, Characterization, and Structure of [GaCl3(NHC)] Complexes
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              3256
_journal_paper_doi               10.1021/om070241g
_journal_volume                  26
_journal_year                    2007
_chemical_absolute_configuration unk
_chemical_formula_sum            'C21 H24 Cl3 Ga N2'
_chemical_formula_weight         480.49
_chemical_name_systematic
;

 ?

;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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            4
_cell_length_a                   17.021(2)
_cell_length_b                   16.803(2)
_cell_length_c                   7.9054(11)
_cell_measurement_reflns_used    6285
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      37.58
_cell_measurement_theta_min      2.70
_cell_volume                     2261.0(5)
_computing_cell_refinement       'Bruker-Nonius Apex v1.0-22 2002'
_computing_data_collection       'Bruker-Nonius Apex v1.0-22 2002'
_computing_data_reduction        'SAINT+ Version 7.06A Bruker-Nonius, 2004'
_computing_molecular_graphics    'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_publication_material  'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_structure_refinement  'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_structure_solution    'Shelxtl Version 6.12 (Sheldrick, 2001)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_device_type  'Kappa 4-axis goniometer bruker-nonius'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support
'magnetic support whith 10 micron nylon fiber cryoloop'
_diffrn_radiation_monochromator  'Multilayer Montel 200 mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0482
_diffrn_reflns_av_sigmaI/netI    0.0435
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            41194
_diffrn_reflns_theta_full        37.61
_diffrn_reflns_theta_max         37.61
_diffrn_reflns_theta_min         2.68
_diffrn_source                   'rotating anode X-ray tube'
_diffrn_source_current           90
_diffrn_source_power             50
_diffrn_source_size              '3 mm x 0.3 mm fine focus'
_diffrn_source_type              'Bruker-Nonius FR 591'
_exptl_absorpt_coefficient_mu    1.580
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.740299
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 SADABS Version 2.1 2003 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.412
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.881
_refine_diff_density_min         -0.676
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.391(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     500
_refine_ls_number_reflns         9569
_refine_ls_number_restraints     19
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0655
_refine_ls_R_factor_gt           0.0473
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0556P)^2^+0.6568P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1116
_refine_ls_wR_factor_ref         0.1193
_reflns_number_gt                7381
_reflns_number_total             9569
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om070241g-file001.cif
_cod_data_source_block           nm332pca21
_cod_depositor_comments
;
The following automatic conversions were performed:
'_diffrn_measurement_specimen_suppport' tag replaced with
'_diffrn_measurement_specimen_support'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pca2(1)
_cod_database_code               4073328