Diquat Derivatives: Highly Active, Two-Dimensional Nonlinear Optical Chromophores with Potential Redox Switchability
Benjamin J. Coe; John Fielden; Simon P. Foxon; James A. Harris; Madeleine Helliwell; Bruce S. Brunschwig; Inge Asselberghs; Koen Clays; Javier Garín; Jesús Orduna; Journal of the American Chemical Society 132 (2010) 10498–10512; doi:10.1021/ja103289a

data_4102737
_publ_contact_author_address
;
School of Chemistry, University of Manchester, Oxford Road, Manchester, M13
 9PL, UK.
;
_publ_contact_author_email       b.coe@manchester.ac.uk
_publ_contact_author_name        'Benjamin J. Coe'
_publ_section_title
;
 Diquat Derivatives: Highly Active, Two-Dimensional Nonlinear Optical
 Chromophores with Potential Redox Switchability
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10498
_journal_page_last               10512
_journal_paper_doi               10.1021/ja103289a
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C37 H40 N4, 2(C10 H7 O3 S), 2(H2 O)'
_chemical_formula_sum            'C57 H58 N4 O8 S2'
_chemical_formula_weight         991.19
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.055(5)
_cell_length_b                   12.875(7)
_cell_length_c                   37.899(19)
_cell_measurement_reflns_used    4904
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.69
_cell_measurement_theta_min      2.24
_cell_volume                     4906(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'silcon 111'
_diffrn_radiation_source         'Daresbury SRS station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6933
_diffrn_reflns_av_R_equivalents  0.1821
_diffrn_reflns_av_sigmaI/netI    0.0889
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            25106
_diffrn_reflns_theta_full        23.26
_diffrn_reflns_theta_max         23.26
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    0.171
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.342
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             2096
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.274
_refine_diff_density_rms         0.067
_refine_ls_extinction_coef       0.046(5)
_refine_ls_extinction_expression
Fc\^*\^=kFc[1+0.001xFc\^2\^\l\^3\^/sin(2\q)]\^-1/4\^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.131
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     459
_refine_ls_number_reflns         3491
_refine_ls_number_restraints     310
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.1370
_refine_ls_R_factor_gt           0.1143
_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\^)+(0.0000P)\^2\^+27.6585P] 
where P=(Fo\^2\^+2Fc\^2\^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2491
_refine_ls_wR_factor_ref         0.2598
_reflns_number_gt                2578
_reflns_number_total             3491
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja103289a_si_002_8.cif
_cod_data_source_block           '[16](NapSO3)2.2H2O'
_cod_database_code               4102737