Ultralarge Hyperpolarizability Twisted π-Electron System Electro-Optic Chromophores: Synthesis, Solid-State and Solution-Phase Structural Characteristics, Electronic Structures, Linear and Nonlinear Optical Properties, and Computational Studies
Hu Kang; Antonio Facchetti; Hua Jiang; Elena Cariati; Stefania Righetto; Renato Ugo; Cristiano Zuccaccia; Alceo Macchioni; Charlotte L. Stern; Zhifu Liu; Seng-Tiong Ho; Eric C. Brown; Mark A. Ratner; Tobin J. Marks; Journal of the American Chemical Society 129 (2007) 3267–3286; doi:10.1021/ja0674690

data_4109170
_publ_section_title
;
 Ultralarge Hyperpolarizability Twisted \p-Electron System Electro-Optic
 Chromophores: Synthesis, Solid-State and Solution-Phase Structural
 Characteristics, Electronic Structures, Linear and Nonlinear Optical
 Properties, and Computational Studies
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3267
_journal_page_last               3286
_journal_paper_doi               10.1021/ja0674690
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C42 H64 N O4'
_chemical_formula_weight         646.94
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_symmetry_space_group_name_H-M   'P 1 21/c 1'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 103.107(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.551(2)
_cell_length_b                   15.697(3)
_cell_length_c                   18.554(3)
_cell_measurement_reflns_used    8329
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.38
_cell_measurement_theta_min      2.25
_cell_volume                     4127.5(12)
_computing_cell_refinement       'Bruker SMART'
_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  0.0475
_diffrn_reflns_av_sigmaI/netI    0.0404
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
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_diffrn_reflns_limit_l_min       -19
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_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  0.9935
_exptl_absorpt_correction_T_min  0.9871
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.041
_exptl_crystal_density_meas      0
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_exptl_crystal_F_000             1420
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
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_refine_diff_density_min         -0.530
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         5374
_refine_ls_number_restraints     0
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_refine_ls_R_factor_all          0.0981
_refine_ls_R_factor_gt           0.0788
_refine_ls_shift/su_max          0.779
_refine_ls_shift/su_mean         0.010
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1100P)^2^+5.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2067
_refine_ls_wR_factor_ref         0.2200
_reflns_number_gt                4210
_reflns_number_total             5374
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0674690si20061024_101520.cif
_cod_data_source_block           Compd_TM2
_cod_original_cell_volume        4127.3(12)
_cod_database_code               4109170