Comparison Study of the Site-Effect on Regioisomeric Pyridyl-Pyrene Conjugates: Synthesis, Structures, and Photophysical Properties.
Lu, Qing; Kole, Goutam Kumar; Friedrich, Alexandra; Müller-Buschbaum, Klaus; Liu, Zhiqiang; Yu, Xiaoqiang; Marder, Todd B.; The Journal of organic chemistry 85 (2020) 4256–4266; doi:10.1021/acs.joc.9b03421

data_4038024
_publ_section_title
;
 Comparison Study of the Site-Effect on Regioisomeric Pyridyl-Pyrene
 Conjugates: Synthesis, Structures, and Photophysical Properties.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4256
_journal_page_last               4266
_journal_paper_doi               10.1021/acs.joc.9b03421
_journal_volume                  85
_journal_year                    2020
_chemical_formula_sum            'C13 H8 N'
_chemical_formula_weight         178.20
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2ybc'
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_cell_length_a                   11.0286(6)
_cell_length_b                   5.4670(3)
_cell_length_c                   13.9855(8)
_cell_measurement_reflns_used    2345
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      72.29
_cell_measurement_theta_min      4.01
_cell_volume                     842.84(8)
_computing_cell_refinement       'Bruker SAINT'
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_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0894
_diffrn_reflns_av_unetI/netI     0.0811
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
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_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.457
_diffrn_reflns_theta_min         4.010
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_exptl_absorpt_correction_T_max  0.987
_exptl_absorpt_correction_T_min  0.700
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'APEX2 Software Suite (Bruker, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.404
_exptl_crystal_description       needle-like
_exptl_crystal_F_000             372
_exptl_crystal_size_max          0.600
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.020
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_refine_diff_density_min         -0.371
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_refine_ls_matrix_type           full
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_refine_ls_number_reflns         1646
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0928
_refine_ls_R_factor_gt           0.0773
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1520P)^2^+0.0512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2027
_refine_ls_wR_factor_ref         0.2241
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1263
_reflns_number_total             1646
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo9b03421_si_001.cif
_cod_data_source_block           2-sad
_cod_depositor_comments
'Adding full bibliography for 4038018--4038031.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4038024
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.700
_shelx_estimated_absorpt_t_max   0.987
_exptl_absorpt_special_details
; 
about 1.5 hours for data collection, 
with scale. 
;
_shelx_res_checksum              52280
_shelx_hkl_checksum              99493