Magnesium, calcium and zinc [N<sub>2</sub>N'] heteroscorpionate complexes.
Luna Barros, Mariana; Cushion, Michael G.; Schwarz, Andrew D.; Turner, Zoë R; Mountford, Philip; Dalton transactions (Cambridge, England : 2003) 48 (2019) 4124–4138; doi:10.1039/c8dt04985h

data_7048531
_publ_section_title
;
 Magnesium, calcium and zinc [N<sub>2</sub>N'] heteroscorpionate
 complexes.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4124
_journal_page_last               4138
_journal_paper_doi               10.1039/c8dt04985h
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C31 H51 N5 Si'
_chemical_formula_sum            'C31 H51 N5 Si'
_chemical_formula_weight         521.86
_chemical_melting_point          ?
_chemical_name_common            HC(tBupz)2SiMe2N(H)Ph
_chemical_name_systematic
; 
(tBupz)2CHSiMe2NHPh
;
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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
_audit_update_record
;
2018-12-18 deposited with the CCDC.
2019-01-08 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 97.144(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8605(1)
_cell_length_b                   19.3115(2)
_cell_length_c                   19.2772(2)
_cell_measurement_reflns_used    27760
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      5.097
_cell_volume                     3272.91(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.0426
_diffrn_reflns_av_sigmaI/netI    0.0304
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            27112
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         5.10
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.970
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            clear_pale_colourless
_exptl_crystal_density_diffrn    1.059
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     348
_refine_ls_number_reflns         7443
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0464
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0627P)^2^+1.2011P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1183
_refine_ls_wR_factor_ref         0.1266
_reflns_number_gt                6307
_reflns_number_total             7443
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8dt04985h2.cif
_cod_data_source_block           (tBupz)2CHSiMe2NHPh
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7048527--7048538.cif.
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7048531