Synthesis, structure and fluorescent studies of novel uranium coordination polymers in the pyridinedicarboxylic acid system.
Frisch, Mark; Cahill, Christopher L.; Dalton transactions (Cambridge, England : 2003)  (2006) 4679–4690; doi:10.1039/b608187h

data_7007652
_publ_section_title
;
 Synthesis, structure and fluorescent studies of novel uranium
 coordination polymers in the pyridinedicarboxylic acid system.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4679
_journal_page_last               4690
_journal_paper_doi               10.1039/b608187h
_journal_year                    2006
_chemical_formula_moiety         'C7 H3 N O6 U'
_chemical_formula_sum            'C7 H3 N O6 U'
_chemical_formula_weight         435.13
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.5685(4)
_cell_length_b                   8.4635(5)
_cell_length_c                   19.7227(12)
_cell_measurement_reflns_used    4052
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.92
_cell_measurement_theta_min      2.07
_cell_volume                     929.51(10)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.936
_diffrn_measurement_device_type  'Bruker APEX CCD'
_diffrn_measurement_method       '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  0.0255
_diffrn_reflns_av_sigmaI/netI    0.0255
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            7093
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.92
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    17.470
_exptl_absorpt_correction_T_max  0.497
_exptl_absorpt_correction_T_min  0.296
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Sheldrick (2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    3.109
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.078
_refine_diff_density_min         -2.307
_refine_diff_density_rms         0.259
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.929
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         2037
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.929
_refine_ls_R_factor_all          0.0225
_refine_ls_R_factor_gt           0.0210
_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^)+(0.0352P)^2^+2.4724P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0523
_refine_ls_wR_factor_ref         0.0531
_reflns_number_gt                1940
_reflns_number_total             2037
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b608187h.txt
_cod_data_source_block           p212121
_cod_original_sg_symbol_H-M      'P 212121'
_cod_database_code               7007652