New Diamide-Diamine Ligands and their Zirconium and Hafnium Dichloride and Bis(dimethylamide) Complexes
Michael E. G. Skinner; Yahong Li; Philip Mountford; Inorganic Chemistry 41 (2002) 1110–1119; doi:10.1021/ic011043z

data_4317660
_publ_contact_author
;
  Dr P. Mountford
  Inorganic Chemistry Laboratory
  South Parks Road
  Oxford
  OX1 3QR
  UK
;
_publ_contact_author_email       Philip.Mountford@chem.ox.ac.uk
_publ_contact_author_fax         '+44 1865 272690'
_publ_contact_author_phone       '+44 1865 272679'
_publ_section_title
;
 New Diamide-Diamine Ligands and their Zirconium and Hafnium Dichloride
 and Bis(dimethylamide) Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1110
_journal_page_last               1119
_journal_paper_doi               10.1021/ic011043z
_journal_volume                  41
_journal_year                    2002
_chemical_compound_source
;
  [Zr(CH2SiMe3)2Cl2] + H2N2NN'
;
_chemical_formula_moiety         ' C16 H32 Cl2 N4 Si2 Zr1, 0.5 (C6 H6)'
_chemical_formula_sum            'C19 H35 Cl2 N4 Si2 Zr'
_chemical_formula_weight         537.81
_chemical_name_systematic
;
  [ZrCl2(N2NN')]
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     Patterson
_cell_angle_alpha                90
_cell_angle_beta                 93.295(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4280(1)
_cell_length_b                   14.3380(4)
_cell_length_c                   21.5020(6)
_cell_measurement_reflns_used    15612
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      0
_cell_volume                     2594.02(11)
_computing_cell_refinement
;
DIP2000 software 'DENZO' (Otwinowski & Minor, 1996)
;
_computing_data_collection       'DIP2000 software "Xpress" (MAC Science, 1989)'
_computing_data_reduction
;
DIP2000 software 'DENZO' (Otwinowski & Minor, 1996)
;
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 1994)'
_computing_publication_material
;
CRYSTALS Issue 10 (Watkin et al, 1996)
;
_computing_structure_refinement
;
CRYSTALS Issue 10 (Watkin et al, 1996)
;
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150
_diffrn_measurement_device_type  'Enraf-nonius DIP2000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.03
_diffrn_reflns_av_sigmaI/netI    0.0332
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            15612
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         1.42
_diffrn_standards_decay_%        'not measured'
_diffrn_standards_interval_count 'not measured'
_diffrn_standards_interval_time  'not measured'
_diffrn_standards_number         'not measured'
_exptl_absorpt_coefficient_mu    0.73
_exptl_absorpt_correction_T_max  0.694
_exptl_absorpt_correction_T_min  0.669
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.38
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    none
_exptl_crystal_description       block
_exptl_crystal_F_000             1116
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.55
_exptl_crystal_size_min          0.50
_refine_diff_density_max         0.28
_refine_diff_density_min         -0.29
_refine_ls_abs_structure_Flack   none
_refine_ls_extinction_coef       65.5(98)
_refine_ls_extinction_method
'Larson 1970 Crystallographic Computing  eqn 22'
_refine_ls_goodness_of_fit_obs   1.099
_refine_ls_hydrogen_treatment    'riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         4506
_refine_ls_number_restraints     0
_refine_ls_R_factor_obs          0.0278
_refine_ls_shift/esd_max         0.006
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      'Chebychev polynomial'
_refine_ls_wR_factor_obs         0.0269
_reflns_limit_h_max              10
_reflns_limit_h_min              -10
_reflns_limit_k_max              17
_reflns_limit_k_min              0
_reflns_limit_l_max              26
_reflns_limit_l_min              0
_reflns_number_observed          4506
_reflns_number_total             5550
_reflns_observed_criterion       >3.00\s(I)
_cod_data_source_file            ic011043z_3.cif
_cod_data_source_block           COMPOUND_7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 

The following automatic conversions were performed:

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

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_atom_sites_solution_hydrogens' value 'geometric' was changed to
'geom'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 

The following automatic conversions were performed:

data name '_diffrn_measurement_device-type' was replaced with
'_diffrn_measurement_device_type' 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_cell_volume        2594.0
_cod_original_sg_symbol_H-M      'P 1 21/n 1 '
_cod_original_formula_sum        ' C19 H35 Cl2 N4 Si2 Zr1'
_cod_database_code               4317660