Zirconium and Hafnium Permethylpentalene Compounds
Chadwick, F. Mark; Cooper, Robert T.; O’Hare, Dermot; Organometallics 35 (2016) 2092–; doi:10.1021/acs.organomet.6b00301

data_4088681
_publ_section_title
;
 Zirconium and Hafnium Permethylpentalene Compounds
;
_journal_issue                   12
_journal_name_full               Organometallics
_journal_page_first              2092
_journal_paper_doi               10.1021/acs.organomet.6b00301
_journal_volume                  35
_journal_year                    2016
_chemical_compound_source        SYN
_chemical_formula_moiety         'C20 H28 Hf1'
_chemical_formula_sum            'C20 H28 Hf'
_chemical_formula_weight         446.93
_chemical_melting_point          ?
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_audit_creation_date             13-04-10
_audit_creation_method           CRYSTALS_ver_14.40
_cell_angle_alpha                96.197(2)
_cell_angle_beta                 98.933(2)
_cell_angle_gamma                106.408(3)
_cell_formula_units_Z            2
_cell_length_a                   7.4644(3)
_cell_length_b                   8.8177(4)
_cell_length_c                   13.8720(6)
_cell_measurement_reflns_used    2920
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     854.06(7)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_pressure         101
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.964
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.036
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            9283
_diffrn_reflns_theta_full        25.449
_diffrn_reflns_theta_max         27.364
_diffrn_reflns_theta_min         5.313
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.100
_exptl_absorpt_correction_T_max  0.74
_exptl_absorpt_correction_T_min  0.57
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.738
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.050
_refine_diff_density_max         2.04
_refine_diff_density_min         -1.88
_refine_ls_extinction_coef       51(5)
_refine_ls_extinction_method     'Larson (1970), Equation 22'
_refine_ls_goodness_of_fit_ref   0.9295
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3734
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0388
_refine_ls_R_factor_gt           0.0351
_refine_ls_shift/su_max          0.0008225
_refine_ls_shift/su_mean         0.0000181
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 47.1 66.7 36.8 9.65 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0905
_refine_ls_wR_factor_gt          0.0837
_refine_ls_wR_factor_ref         0.0905
_reflns_limit_h_max              9
_reflns_limit_h_min              -9
_reflns_limit_k_max              11
_reflns_limit_k_min              -11
_reflns_limit_l_max              17
_reflns_limit_l_min              0
_reflns_number_gt                3481
_reflns_number_total             3734
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   1.89
_oxford_diffrn_Wilson_scale      2.57
_oxford_refine_ls_r_factor_ref   0.0388
_oxford_refine_ls_scale          0.634(2)
_oxford_reflns_number_all        3734
_oxford_reflns_threshold_expression_ref I>0.0\s(I)
_oxford_structure_analysis_title '161fmc13 At 13: 3 on 10/ 4'
_cod_data_source_file            om6b00301_si_002.cif
_cod_data_source_block           2Hf
_cod_depositor_comments
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The following automatic conversions were performed:

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

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

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P -1 '
_cod_original_formula_sum        'C20 H28 Hf1'
_cod_database_code               4088681
_iucr_refine_instruction_details_constraints
;
BLOCK SCALE X'S, U'S 
CONT EXTPARAM 
RIDE C   (   9,X'S) H   (  93,X'S) H   (  92,X'S) H   (  91,X'S) 
RIDE C   (  10,X'S) H   ( 101,X'S) H   ( 102,X'S) H   ( 103,X'S) 
RIDE C   (  11,X'S) H   ( 113,X'S) H   ( 112,X'S) H   ( 111,X'S) 
RIDE C   (  12,X'S) H   ( 121,X'S) H   ( 122,X'S) H   ( 123,X'S) 
RIDE C   (  13,X'S) H   ( 133,X'S) H   ( 132,X'S) H   ( 131,X'S) 
RIDE C   (  14,X'S) H   ( 143,X'S) H   ( 142,X'S) H   ( 141,X'S) 
RIDE C   (  15,X'S) H   ( 151,X'S) H   ( 152,X'S) 
RIDE C   (  16,X'S) H   ( 161,X'S) 
RIDE C   (  17,X'S) H   ( 171,X'S) H   ( 172,X'S) 
RIDE C   (  18,X'S) H   ( 181,X'S) H   ( 182,X'S) 
RIDE C   (  19,X'S) H   ( 191,X'S) 
RIDE C   (  20,X'S) H   ( 201,X'S) H   ( 202,X'S) 
END                                                                             
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_iucr_refine_instruction_details_restraints
;
NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
END                                                                             
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