Dynamic Behavior, Redistribution Reactions, and Intermetallic Distances of Dinuclear Bis(μ-pyrazolato)rhodium(I) Complexes
Tejel, Cristina; Villoro, José M.; Ciriano, Miguel A.; López, José A.; Eguizábal, Eduardo; Lahoz, Fernando J.; Bakhmutov, Vladimir I.; Oro, Luis A.; Organometallics 15 (1996) 2967–; doi:10.1021/om960005y

data_4078328
_publ_section_title
;
 Dynamic Behavior, Redistribution Reactions, and Intermetallic Distances
 of Dinuclear Bis(\m-pyrazolato)rhodium(I) Complexes
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              2967
_journal_paper_doi               10.1021/om960005y
_journal_volume                  15
_journal_year                    1996
_chemical_formula_structural     '[Rh(\m-pz)(C~2~H~4~)~2~]~2~'
_chemical_formula_sum            'C18 H30 N4 Rh2'
_chemical_formula_weight         508.28
_space_group_IT_number           113
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.1652(4)
_cell_length_b                   11.1652(4)
_cell_length_c                   8.0783(4)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      17.5
_cell_measurement_theta_min      10
_cell_volume                     1007.05(7)
_computing_cell_refinement       'XSCANS v.2.1 (Siemens)'
_computing_data_collection       'XSCANS v.2.1 (Siemens)'
_computing_data_reduction        'XSCANS v.2.1 (Siemens)'
_computing_molecular_graphics    'SHELXTL-PLUS v.4.2 (Siemens)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SIR92 (Giacovazzo, 1994)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Siemens P4'
_diffrn_measurement_method       '\w/2\q scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal focus Siemens Mo sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0166
_diffrn_reflns_av_sigmaI/netI    0.0161
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            2508
_diffrn_reflns_theta_max         30.81
_diffrn_reflns_theta_min         2.52
_diffrn_standards_decay_%        1.1
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.645
_exptl_absorpt_correction_T_max  0.494
_exptl_absorpt_correction_T_min  0.397
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.676
_exptl_crystal_description       'prismatic block'
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.311
_refine_diff_density_min         -0.300
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.05(4)
_refine_ls_extinction_coef       0.0194(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   1.070
_refine_ls_goodness_of_fit_obs   1.073
_refine_ls_matrix_type           full
_refine_ls_number_parameters     78
_refine_ls_number_reflns         1120
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.141
_refine_ls_restrained_S_obs      1.073
_refine_ls_R_factor_all          0.0157
_refine_ls_R_factor_obs          0.0148
_refine_ls_shift/esd_max         -0.002
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0244P)^2^+0.0638P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0423
_refine_ls_wR_factor_obs         0.0395
_reflns_number_observed          1106
_reflns_number_total             1121
_reflns_observed_criterion       I>2sigma(I)
_cod_data_source_file            om2967.cif
_cod_data_source_block           comp3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0244P)^2^+0.0638P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0244P)^2^+0.0638P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_formula_sum        'C18 H30 H0 N4 Rh2'
_cod_database_code               4078328
_refine_ls_hydrogen_treatment_special_details
;
 The hydrogen atoms were localized in a difference-Fourier map, and refined
in the subsequents full-matrix least-squares refinements with free isotopic
thermal parameters. Those ones of the pirazolate ligand were refined with
the positional parameters free, but those ones of the ethylen ligand were
refined riding on the carbon atoms.
;