A stable heavier group 14 analogue of vinylidene
Arnab Rit; Jesus Campos; Haoyu Niu; Simon Aldridge; Nature Chemistry 8 (2016) 1022–1026; doi:10.1038/nchem.2597

data_1552002
_publ_section_title
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 A stable heavier group 14 analogue of vinylidene
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_journal_name_full               'Nature Chemistry'
_journal_page_first              1022
_journal_page_last               1026
_journal_paper_doi               10.1038/nchem.2597
_journal_volume                  8
_journal_year                    2016
_chemical_absolute_configuration .
_chemical_formula_moiety         'C37 H56 B1 Cl1 Ge1 N4'
_chemical_formula_sum            'C37 H56 B Cl Ge N4'
_chemical_formula_weight         675.73
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     other
_cell_angle_alpha                90
_cell_angle_beta                 102.9399(7)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   31.5447(4)
_cell_length_b                   15.1571(2)
_cell_length_c                   16.3260(3)
_cell_measurement_reflns_used    8622
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     7607.7(2)
_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    'Superflip (Palatinus & Chapuis, 2007)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.987
_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  0.027
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            15997
_diffrn_reflns_theta_full        25.009
_diffrn_reflns_theta_max         27.482
_diffrn_reflns_theta_min         5.105
_diffrn_standards_interval_count .
_diffrn_standards_interval_time  .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.905
_exptl_absorpt_correction_T_max  0.83
_exptl_absorpt_correction_T_min  0.79
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.180
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2880
_exptl_crystal_size_max          0.260
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.200
_refine_diff_density_max         2.32
_refine_diff_density_min         -0.82
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     133
_refine_ls_number_reflns         8603
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0631
_refine_ls_R_factor_gt           0.0469
_refine_ls_shift/su_max          0.0024129
_refine_ls_shift/su_mean         0.0001550
_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: 
 27.3 39.5 18.6 4.47 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1164
_refine_ls_wR_factor_gt          0.1011
_refine_ls_wR_factor_ref         0.1164
_reflns_limit_h_max              39
_reflns_limit_h_min              -40
_reflns_limit_k_max              19
_reflns_limit_k_min              0
_reflns_limit_l_max              21
_reflns_limit_l_min              0
_reflns_number_gt                6911
_reflns_number_total             8603
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   2.31
_oxford_diffrn_Wilson_scale      25.48
_oxford_refine_ls_r_factor_ref   0.0631
_oxford_refine_ls_scale          0.18652(4)
_oxford_reflns_number_all        8603
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_iucr_refine_instructions_details_constraints
;
BLOCK SCALE X'S 
RIDE C   (   9,X'S) H   (  91,X'S) 
RIDE C   (  10,X'S) H   ( 101,X'S) 
RIDE C   (  11,X'S) H   ( 111,X'S) 
RIDE C   (  13,X'S) H   ( 131,X'S) 
RIDE C   (  14,X'S) H   ( 142,X'S) H   ( 141,X'S) H   ( 143,X'S) 
RIDE C   (  15,X'S) H   ( 151,X'S) H   ( 153,X'S) H   ( 152,X'S) 
RIDE C   (  16,X'S) H   ( 161,X'S) 
RIDE C   (  17,X'S) H   ( 172,X'S) H   ( 171,X'S) H   ( 173,X'S) 
RIDE C   (  18,X'S) H   ( 181,X'S) H   ( 183,X'S) H   ( 182,X'S) 
RIDE C   (  19,X'S) H   ( 191,X'S) 
RIDE C   (  20,X'S) H   ( 201,X'S) 
RIDE C   (  24,X'S) H   ( 241,X'S) 
RIDE C   (  25,X'S) H   ( 251,X'S) 
RIDE C   (  26,X'S) H   ( 261,X'S) 
RIDE C   (  28,X'S) H   ( 281,X'S) 
RIDE C   (  29,X'S) H   ( 291,X'S) H   ( 292,X'S) H   ( 293,X'S) 
RIDE C   (  30,X'S) H   ( 301,X'S) H   ( 302,X'S) H   ( 303,X'S) 
RIDE C   (  31,X'S) H   ( 311,X'S) 
RIDE C   (  32,X'S) H   ( 321,X'S) H   ( 322,X'S) H   ( 323,X'S) 
RIDE C   (  33,X'S) H   ( 331,X'S) H   ( 332,X'S) H   ( 333,X'S) 
RIDE C   (  36,X'S) H   ( 361,X'S) 
RIDE C   (  37,X'S) H   ( 371,X'S) H   ( 372,X'S) H   ( 373,X'S) 
RIDE C   (  38,X'S) H   ( 381,X'S) H   ( 382,X'S) H   ( 383,X'S) 
RIDE C   (  40,X'S) H   ( 402,X'S) H   ( 401,X'S) H   ( 403,X'S) 
RIDE C   (  43,X'S) H   ( 431,X'S) 
RIDE C   (  44,X'S) H   ( 441,X'S) H   ( 442,X'S) H   ( 443,X'S) 
RIDE C   (  45,X'S) H   ( 452,X'S) H   ( 451,X'S) H   ( 453,X'S) 
RIDE C   (  46,X'S) H   ( 462,X'S) H   ( 461,X'S) H   ( 463,X'S) 
END                                                                             
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_iucr_refine_instructions_details_restraints
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NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
END                                                                             
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_cod_data_source_file            nchem.2597-s2.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_atom_sites_solution_primary' value 'Other' was changed to
'other' in accordance with the built-in table derived from the CIF
Core dictionary named 'cif_core.dic' version 2.4.5 last updated on
2014-11-21.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_Hall     '-C 2yc '
_cod_original_sg_symbol_H-M      'C 2/c '
_cod_original_formula_sum        'C37 H56 B1 Cl1 Ge1 N4'
_cod_database_code               1552002