Syntheses, Structures, and Dimerizations of Ferrocenyl- and Fluorenylideneallenes: Push−Pull Multiple Bonds?
Banide, Emilie V.; Ortin, Yannick; Chamiot, Bénédicte; Cassidy, Andrew; Niehaus, Jan; Moore, Angela; Seward, Corey M.; Müller-Bunz, Helge; McGlinchey, Michael J.; Organometallics 27 (2008) 4173–; doi:10.1021/om800293m

data_4071644
_publ_section_title
;
 Syntheses, Structures, and Dimerizations of Ferrocenyl- and
 Fluorenylideneallenes: Push&#x2212;Pull Multiple Bonds?
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              4173
_journal_paper_doi               10.1021/om800293m
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C7 H4 N2 O2, C7 H5 N2 O2, B F4'
_chemical_formula_sum            'C14 H9 B F4 N4 O4'
_chemical_formula_weight         384.06
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 109.0970(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.0959(10)
_cell_length_b                   7.1079(4)
_cell_length_c                   14.3430(9)
_cell_measurement_reflns_used    6975
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      2.32
_cell_volume                     1550.65(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0139
_diffrn_reflns_av_sigmaI/netI    0.0136
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            11493
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.68
_exptl_absorpt_coefficient_mu    0.152
_exptl_absorpt_correction_T_max  0.9145
_exptl_absorpt_correction_T_min  0.8078
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.645
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.80
_exptl_crystal_size_min          0.60
_refine_diff_density_max         0.296
_refine_diff_density_min         -0.277
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     276
_refine_ls_number_reflns         3042
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0338
_refine_ls_R_factor_gt           0.0313
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0405P)^2^+0.6686P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0791
_refine_ls_wR_factor_ref         0.0808
_reflns_number_gt                2822
_reflns_number_total             3042
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800293m-file002.cif
_cod_data_source_block           mjm32
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4071644