Synthesis and Structure of Group IV Distanna[2]metallocenophanes
Arnold, Thomas; Braunschweig, Holger; Damme, Alexander; Krummenacher, Ivo; Radacki, Krzysztof; Organometallics 33 (2014) 254–; doi:10.1021/om400993g

data_4082641
_publ_section_title
;
 Synthesis and Structure of Group IV Distanna[2]metallocenophanes
;
_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              254
_journal_paper_doi               10.1021/om400993g
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C26 H44 Cl2 Hf Sn2'
_chemical_formula_sum            'C26 H44 Cl2 Hf Sn2'
_chemical_formula_weight         843.38
_chemical_name_common
;
?
;
_chemical_name_systematic
; 
?
;
_space_group_IT_number           14
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 94.048(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.8316(19)
_cell_length_b                   9.1074(11)
_cell_length_c                   20.385(3)
_cell_measurement_reflns_used    8136
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.81
_cell_measurement_theta_min      2.30
_cell_volume                     2931.9(7)
_computing_cell_refinement       'Saint+ ver. 7.68A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2010.3 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. 7.68A (Bruker AXS)'
_computing_molecular_graphics    'XP ver. 5.1 (Bruker AXS, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker X8-APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0575
_diffrn_reflns_av_sigmaI/netI    0.0360
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            46432
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.84
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    5.417
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.3959
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs 2008/1 (Bruker 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.911
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1624
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.489
_refine_diff_density_min         -0.654
_refine_diff_density_rms         0.133
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         6279
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0238
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0248P)^2^+1.3909P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0536
_refine_ls_wR_factor_ref         0.0561
_reflns_number_gt                5517
_reflns_number_total             6279
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400993g_si_001.cif
_cod_data_source_block           7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        2931.9(6)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4082641