Coordination chemistry of sterically encumbered pyrrolyl ligands to chromium(ii): mono(pyrrolyl)chromium and diazachromocene formation.
Kreye, Markus; Daniliuc, Constantin G.; Freytag, Matthias; Jones, Peter G.; Walter, Marc D.; Dalton transactions (Cambridge, England : 2003) 43 (2014) 9052–9060; doi:10.1039/c4dt00533c

data_7030455
_publ_section_title
;
 Coordination chemistry of sterically encumbered pyrrolyl ligands to
 chromium(ii): mono(pyrrolyl)chromium and diazachromocene formation.
;
_journal_issue                   24
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9052
_journal_page_last               9060
_journal_paper_doi               10.1039/c4dt00533c
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C28 H48 Cr N2'
_chemical_formula_weight         464.68
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 114.962(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.0267(5)
_cell_length_b                   32.0929(16)
_cell_length_c                   10.4615(6)
_cell_measurement_reflns_used    15789
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      75.7270
_cell_measurement_theta_min      4.1291
_cell_volume                     2747.5(3)
_computing_cell_refinement
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET) 
(compiled Oct 27 2011,15:02:11) 
;
_computing_data_collection
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET) 
(compiled Oct 27 2011,15:02:11) 
;
_computing_data_reduction
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET) 
(compiled Oct 27 2011,15:02:11) 
;
_computing_molecular_graphics    'Bruker XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      130(2)
_diffrn_detector_area_resol_mean 10.3543
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur, Atlas, Nova'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'Nova (Cu) X-ray Source'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0990
_diffrn_reflns_av_sigmaI/netI    0.0364
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       40
_diffrn_reflns_limit_k_min       -40
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            59471
_diffrn_reflns_theta_full        75.00
_diffrn_reflns_theta_max         75.92
_diffrn_reflns_theta_min         4.86
_exptl_absorpt_coefficient_mu    3.522
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.06719
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET) 
(compiled Oct 27 2011,15:02:11) 
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.123
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.210
_refine_diff_density_min         -0.707
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     296
_refine_ls_number_reflns         5706
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0651
_refine_ls_R_factor_gt           0.0587
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0787P)^2^+2.9225P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1482
_refine_ls_wR_factor_ref         0.1538
_reflns_number_gt                5086
_reflns_number_total             5706
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00533c2.cif
_cod_data_source_block           mk61
_cod_depositor_comments
;Adding full bibliography for 7030454--7030458.cif.

The following automatic conversions were performed:

data name '_iucr_refine_instruction_details' was replaced with
'_iucr_refine_instructions_details' as specified in the replacement
file 'data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 9268 2022-04-12 08:56:07Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7030455