Diffuse Diffraction from Parallel/Antiparallel Metallocene Pillars
Irwin, Levi J.; Zeits, Paul D.; Reibenspies, Joseph H.; Miller, Stephen A.; Organometallics 26 (2007) 1129–; doi:10.1021/om060435g

data_4072459
_publ_section_title
;
 Diffuse Diffraction from Parallel/Antiparallel Metallocene Pillars
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1129
_journal_paper_doi               10.1021/om060435g
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C39 H52 Zr'
_chemical_formula_weight         612.03
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   29.750(6)
_cell_length_b                   14.980(3)
_cell_length_c                   7.3554(17)
_cell_measurement_reflns_used    841
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      56.47
_cell_measurement_theta_min      2.97
_cell_volume                     3278.0(12)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'MWPC area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0792
_diffrn_reflns_av_sigmaI/netI    0.0834
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -33
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_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            17192
_diffrn_reflns_theta_full        59.18
_diffrn_reflns_theta_max         59.18
_diffrn_reflns_theta_min         2.97
_exptl_absorpt_coefficient_mu    2.909
_exptl_absorpt_correction_T_max  0.8682
_exptl_absorpt_correction_T_min  0.7596
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.240
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1304
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.785
_refine_diff_density_min         -0.776
_refine_diff_density_rms         0.084
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(9)
_refine_ls_extinction_method     none
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_refine_ls_number_reflns         4520
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_refine_ls_R_factor_all          0.1029
_refine_ls_R_factor_gt           0.0858
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_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0422P)^2^+22.2560P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1692
_refine_ls_wR_factor_ref         0.1785
_reflns_number_gt                3599
_reflns_number_total             4520
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060435gsi20061211_031105.cif
_cod_data_source_block           sm26_2-Zr
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z 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 
;
_cod_original_cell_volume        3277.9(12)
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               4072459