Trivalent Actinide and Lanthanide Complexation of 5,6-Dialkyl-2,6-bis(1,2,4-triazin-3-yl)pyridine (RBTP; R = H, Me, Et) Derivatives: A Combined Experimental and First-Principles Study
Arunasis Bhattacharyya; Eunja Kim; Philippe F. Weck; Paul M. Forster; Kenneth R. Czerwinski; Inorganic Chemistry 52 (2013) 761–776; doi:10.1021/ic301881w

data_4333561
_publ_contact_author_address
;Paul M. Forster
Department of Chemistry
University of Nevada, Las Vegas
4505 South Maryland Parkway, Box 454003
Las Vegas, NV 89154-4003
;
_publ_contact_author_email       paul.forster@unlv.edu
_publ_contact_author_name        'Paul Forster'
_publ_contact_author_phone       702-895-3753
_publ_section_title
;
 Trivalent Actinide and Lanthanide Complexation of
 5,6-Dialkyl-2,6-bis(1,2,4-triazin-3-yl)pyridine (RBTP; R = H, Me, Et)
 Derivatives: A Combined Experimental and First-Principles Study
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              761
_journal_page_last               776
_journal_paper_doi               10.1021/ic301881w
_journal_volume                  52
_journal_year                    2013
_chemical_formula_sum            'C30 H30 Eu2 N20 O18'
_chemical_formula_weight         1262.66
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 106.6330(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.1674(8)
_cell_length_b                   10.8952(6)
_cell_length_c                   15.3985(9)
_cell_measurement_reflns_used    9973
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      66.009
_cell_measurement_theta_min      4.647
_cell_volume                     2116.7(2)
_computing_cell_refinement       'APEX II'
_computing_data_collection       'APEX II'
_computing_data_reduction        'APEX II'
_computing_molecular_graphics    'Diamond 3.1'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 1024x1024
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX II'
_diffrn_measurement_method       omega
_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  0.0352
_diffrn_reflns_av_sigmaI/netI    0.0235
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            24926
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    3.037
_exptl_absorpt_correction_T_max  0.7465
_exptl_absorpt_correction_T_min  0.5682
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.981
_exptl_crystal_description       needle
_exptl_crystal_F_000             1240
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.854
_refine_diff_density_min         -1.199
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         4333
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0283
_refine_ls_R_factor_gt           0.0223
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0214P)^2^+3.5452P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0504
_refine_ls_wR_factor_ref         0.0519
_reflns_number_gt                3713
_reflns_number_total             4333
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic301881w_si_002_3.cif
_cod_data_source_block           2b
_cod_database_code               4333561