Carbene based photochemical molecular assemblies for solar driven hydrogen generation.
Peuntinger, Katrin; Pilz, T. David; Staehle, Robert; Schaub, Markus; Kaufhold, Simon; Petermann, Lydia; Wunderlin, Markus; Görls, Helmar; Heinemann, Frank W.; Li, Jing; Drewello, Thomas; Vos, Johannes G.; Guldi, Dirk M.; Rau, Sven; Dalton transactions (Cambridge, England : 2003) 43 (2014) 13683–13695; doi:10.1039/c4dt01546k

data_7032350
_publ_section_title
;
 Carbene based photochemical molecular assemblies for solar driven
 hydrogen generation.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13683
_journal_page_last               13695
_journal_paper_doi               10.1039/c4dt01546k
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C20 H14 N4, 1.5(H2 O)'
_chemical_formula_sum            'C20 H17 N4 O1.5'
_chemical_formula_weight         337.38
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                79.993(2)
_cell_angle_beta                 86.406(2)
_cell_angle_gamma                85.159(2)
_cell_formula_units_Z            4
_cell_length_a                   11.2481(3)
_cell_length_b                   12.1858(5)
_cell_length_c                   12.4532(6)
_cell_measurement_reflns_used    11572
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.18
_cell_volume                     1672.95(12)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-scan'
_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  0.0322
_diffrn_reflns_av_sigmaI/netI    0.0716
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11572
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.18
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             708
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.339
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.010
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     460
_refine_ls_number_reflns         7621
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.1013
_refine_ls_R_factor_gt           0.0558
_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^)+(0.0552P)^2^+0.4933P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1149
_refine_ls_wR_factor_ref         0.1337
_reflns_number_gt                5013
_reflns_number_total             7621
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7031798
_cod_data_source_file            c4dt01546k2.cif
_cod_data_source_block           FO3947
_cod_original_cell_volume        1672.95(11)
_cod_original_formula_sum        'C20 H17 N4 O1.50'
_cod_database_code               7032350