Structural Versatility of Pyrene-2-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolane) and Pyrene-2,7-bis(4,4,5,5-tetramethyl-[1,3,2]dioxaborolane)
Batsanov, Andrei S.; Howard, Judith A. K.; Albesa-Jové, David; Collings, Jonathan C.; Liu, Zhiqiang; Mkhalid, Ibraheem A. I.; Thibault, Marie-Hélène; Marder, Todd B.; Crystal Growth & Design 12 (2012) 2794–; doi:10.1021/cg201554t

data_4506142
_publ_section_title
;
 Structural Versatility of
 Pyrene-2-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolane) and
 Pyrene-2,7-bis(4,4,5,5-tetramethyl-[1,3,2]dioxaborolane)
;
_journal_issue                   6
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2794
_journal_paper_doi               10.1021/cg201554t
_journal_volume                  12
_journal_year                    2012
_chemical_formula_moiety         'C28 H32 B2 O4'
_chemical_formula_sum            'C28 H32 B2 O4'
_chemical_formula_weight         454.16
_chemical_name_systematic
; 
 Pyrene-2,7-bis(4,4,5,5-tetramethyl-[1,3,2]dioxaborolane) 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.286(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.4525(1)
_cell_length_b                   11.0823(2)
_cell_length_c                   16.9139(3)
_cell_measurement_reflns_used    2968
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      65.19
_cell_measurement_theta_min      4.77
_cell_volume                     1207.50(4)
_computing_cell_refinement       'APEX2 (Bruker, 2006)'
_computing_data_collection       'APEX2 (Bruker, 2006)'
_computing_data_reduction        'SAINT V7.60A (Bruker, 2008)'
_computing_molecular_graphics
;
 OLEX2: a complete structure solution, refinement and analysis program.
 Dolomanov et al., J. Appl. Cryst. (2009). 42, 339-341
;
_computing_publication_material
;
 OLEX2: a complete structure solution, refinement and analysis program.
 Dolomanov et al., J. Appl. Cryst. (2009). 42, 339-341
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Bruker PLATINUM135 CCD area detector'
_diffrn_measurement_method       'w scans'
_diffrn_radiation_monochromator  'cross-coupled G\"obel mirrors'
_diffrn_radiation_source         'Microstar rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0212
_diffrn_reflns_av_sigmaI/netI    0.0250
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            6183
_diffrn_reflns_theta_full        65.74
_diffrn_reflns_theta_max         65.74
_diffrn_reflns_theta_min         4.77
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.636
_exptl_absorpt_correction_T_max  0.7527
_exptl_absorpt_correction_T_min  0.6527
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2008/1 (Bruker), R(int)=0.083 before correction'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.249
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       pyramid
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.148
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     162
_refine_ls_number_reflns         2045
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0485
_refine_ls_R_factor_gt           0.0400
_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^)+(0.0608P)^2^+0.2820P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1022
_refine_ls_wR_factor_ref         0.1096
_reflns_number_gt                1718
_reflns_number_total             2045
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cg201554t_si_002.cif
_cod_data_source_block           \g-1
_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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4506142