Competitive interactions in crystalline 9-pyridyl-9-fluorenols: crossover from O–H⋯O to O–H⋯N hydrogen bonding to construct intra- and intermolecular, helical and linear contact modes
Hosseinzadeh, R.; Lasemi, Z.; Seichter, W.; Weber, E.; CrystEngComm 11 (2009) 1331–; doi:10.1039/b822101d

data_7200802
_publ_section_title
;
 Competitive interactions in crystalline 9-pyridyl-9-fluorenols:
 crossover from O--H&#x22EF;O to O--H&#x22EF;N hydrogen bonding to
 construct intra- and intermolecular, helical and linear contact modes
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              1331
_journal_paper_doi               10.1039/b822101d
_journal_volume                  11
_journal_year                    2009
_chemical_formula_moiety         'C18 H13 N O'
_chemical_formula_sum            'C18 H13 N O'
_chemical_formula_weight         259.29
_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                 96.9350(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.7369(2)
_cell_length_b                   7.93760(10)
_cell_length_c                   13.0497(2)
_cell_measurement_reflns_used    6165
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      30.92
_cell_measurement_theta_min      3.01
_cell_volume                     1309.68(3)
_computing_cell_refinement       'SAINT-NT (Sheldrick, 2008)'
_computing_data_collection       'Kappa APEX 2 (Bruker AXS, 2004)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'ORTEP-3 (Farrugia)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0495
_diffrn_reflns_av_sigmaI/netI    0.0339
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            21936
_diffrn_reflns_theta_full        28.95
_diffrn_reflns_theta_max         28.95
_diffrn_reflns_theta_min         1.61
_diffrn_standards_decay_%        <1%
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9919
_exptl_absorpt_correction_T_min  0.9381
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.315
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         3461
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0600
_refine_ls_R_factor_gt           0.0404
_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^)+(0.0756P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1056
_refine_ls_wR_factor_ref         0.1223
_reflns_number_gt                2509
_reflns_number_total             3461
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b822101d.txt
_cod_data_source_block           hoss_25_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'multi scan' changed to
'multi-scan' 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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7200802