Synthesis of 1,3-Diphenyl-6-alkyl/aryl-Substituted Fulvene Chromophores: Observation of π-π Interactions in a 6-Pyrene-Substituted 1,3-Diphenylfulvene
Andrew J. Peloquin; Rebecca L. Stone; Sarah E. Avila; Erlyn R. Rudico; Christopher B. Horn; Kim A. Gardner; David W. Ball; Jane E. B. Johnson; Scott T. Iacono; Gary J. Balaich; Journal of Organic Chemistry 77 (2012) 6371–6376; doi:10.1021/jo301101x

data_4027338
_publ_section_title
;
 Synthesis of 1,3-Diphenyl-6-alkyl/aryl-Substituted Fulvene Chromophores:
 Observation of \p-\p Interactions in a 6-Pyrene-Substituted
 1,3-Diphenylfulvene
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6371
_journal_page_last               6376
_journal_paper_doi               10.1021/jo301101x
_journal_volume                  77
_journal_year                    2012
_chemical_formula_iupac          'C24 H24'
_chemical_formula_moiety         'C24 H24'
_chemical_formula_sum            'C24 H24'
_chemical_formula_weight         312.43
_chemical_name_common            6-cyclohexyl-1,3-diphenylfulvene
_chemical_name_systematic        6-cyclohexyl-1,3-diphenylfulvene
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'APEX2 v2009.7-0'
_cell_angle_alpha                90
_cell_angle_beta                 93.188(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.841(3)
_cell_length_b                   6.1472(8)
_cell_length_c                   26.751(3)
_cell_measurement_reflns_used    4746
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      27.6749
_cell_measurement_theta_min      2.3447
_cell_volume                     3586.1(8)
_computing_cell_refinement       'SAINT V7.66A (Bruker AXS, 2009)'
_computing_data_collection       'Bruker SMART APEX'
_computing_data_reduction        'SAINT V7.66A (Bruker AXS, 2009)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_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  0.0290
_diffrn_reflns_av_sigmaI/netI    0.0272
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            17871
_diffrn_reflns_theta_full        27.83
_diffrn_reflns_theta_max         27.83
_diffrn_reflns_theta_min         2.34
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.82
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS, Version 2008/1'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.157
_exptl_crystal_description       'rectangular block'
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.258
_refine_diff_density_min         -0.176
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         4227
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0611
_refine_ls_R_factor_gt           0.0467
_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^)+(0.0484P)^2^+2.9993P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1124
_refine_ls_wR_factor_ref         0.1216
_reflns_number_gt                3391
_reflns_number_total             4227
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo301101x_si_003_4.cif
_cod_data_source_block           compound_5
_cod_database_code               4027338