New bis(triazinyl) pyridines for selective extraction of americium(<small>III</small>)
Michael J. Hudson; Carole E. Boucher; Damien Braekers; Jean F. Desreux; Michael G. B. Drew; Mark R. St J. Foreman; Laurence M. Harwood; Clément Hill; Charles Madic; Frank Marken; Tristan G. A. Youngs; New Journal of Chemistry 30 (2006) 1171–; doi:10.1039/b514108g

data_7052223
_publ_section_title
;
 New bis(triazinyl) pyridines for selective extraction of
 americium(<small>III</small>)
;
_journal_issue                   8
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1171
_journal_paper_doi               10.1039/b514108g
_journal_volume                  30
_journal_year                    2006
_chemical_formula_sum            'C81 H115 N27 O20.5 Y2'
_chemical_formula_weight         1972.82
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 97.108(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   34.86(4)
_cell_length_b                   14.790(17)
_cell_length_c                   40.64(4)
_cell_measurement_reflns_used    17907
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.22
_cell_measurement_theta_min      2.18
_cell_volume                     20792(4)
_computing_cell_refinement       XDS
_computing_data_collection       'XDS (Kabsch, 1991)'
_computing_data_reduction        XDS
_computing_molecular_graphics    PLATON(Spek,1994)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Marresearch Image Plate'
_diffrn_measurement_method
'95 frames at 2^o intervals, counting time 10 min.'
_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  0.2170
_diffrn_reflns_av_sigmaI/netI    0.3179
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       49
_diffrn_reflns_limit_l_min       -49
_diffrn_reflns_number            55610
_diffrn_reflns_theta_max         26.22
_diffrn_reflns_theta_min         2.18
_diffrn_standards_decay_%        0
_diffrn_standards_number         n/a
_exptl_absorpt_coefficient_mu    1.185
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.346
_exptl_absorpt_correction_type   DIFABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelopiped
_exptl_crystal_F_000             8256
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.428
_refine_diff_density_min         -0.341
_refine_diff_density_rms         0.061
_refine_ls_extinction_coef       0.00027(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   0.841
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1173
_refine_ls_number_reflns         17907
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.841
_refine_ls_R_factor_all          0.2879
_refine_ls_R_factor_gt           0.0940
_refine_ls_shift/su_max          0.075
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0864P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2028
_refine_ls_wR_factor_ref         0.2678
_reflns_number_gt                5119
_reflns_number_total             17907
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b514108g.txt
_cod_data_source_block           Y
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0864P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0864P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        20789(41)
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'C81 H115 N27 O20.50 Y2'
_cod_database_code               7052223