Ultraviolet-violet electroluminescence from highly fluorescent purines
Yixing Yang; Pamela Cohn; Sang-Hyun Eom; Khalil A. Abboud; Ronald K. Castellano; Jiangeng Xue; Journal of Materials Chemistry C 1 (2013) 2867–2874; doi:10.1039/C3TC00734K

data_7233202
_publ_section_title
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 Ultraviolet-violet electroluminescence from highly fluorescent purines
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              2867
_journal_page_last               2874
_journal_paper_doi               10.1039/C3TC00734K
_journal_volume                  1
_journal_year                    2013
_chemical_formula_sum            'C16 H18 N6 O2'
_chemical_formula_weight         326.36
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 91.474(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.6775(7)
_cell_length_b                   5.5932(4)
_cell_length_c                   26.0030(17)
_cell_measurement_reflns_used    9880
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.91
_cell_measurement_theta_min      2.99
_cell_volume                     1552.42(18)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2 DUO(Bruker, 2008)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL (Bruker, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II DUO'
_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  0.0453
_diffrn_reflns_av_sigmaI/netI    0.0289
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            29594
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.57
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9965
_exptl_absorpt_correction_T_min  0.9745
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.396
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.230
_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         3571
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0541
_refine_ls_R_factor_gt           0.0394
_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^)+(0.0539P)^2^+0.2518P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0954
_refine_ls_wR_factor_ref         0.1004
_reflns_number_gt                2799
_reflns_number_total             3571
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            J-Mat-Chem-C-2013-1-2867.cif
_cod_data_source_block           cohn1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7233202