Stable analogs of the uranyl ion containing 1,1,3,3-tetramethylguanidine.
Bertke, Jeffrey A.; Bunge, Scott D.; Dalton transactions (Cambridge, England : 2003)  (2007) 4647–4649; doi:10.1039/b712054k

data_7006291
_publ_section_title
;
 Stable analogs of the uranyl ion containing
 1,1,3,3-tetramethylguanidine.
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4647
_journal_page_last               4649
_journal_paper_doi               10.1039/b712054k
_journal_year                    2007
_chemical_formula_sum            'C38 H68 N6 O4 U'
_chemical_formula_weight         911.01
_chemical_name_common            '(2) (UO2OC6H3-2,6-(C(CH3)3)2HTMG2)'
_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
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_cell_angle_beta                 115.825(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   35.584(4)
_cell_length_b                   11.1983(13)
_cell_length_c                   23.246(3)
_cell_measurement_reflns_used    6613
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.74
_cell_measurement_theta_min      2.51
_cell_volume                     8338.0(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0359
_diffrn_reflns_av_sigmaI/netI    0.0286
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            34044
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.27
_exptl_absorpt_coefficient_mu    3.936
_exptl_absorpt_correction_T_max  0.4919
_exptl_absorpt_correction_T_min  0.2436
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.451
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       block
_exptl_crystal_F_000             3696
_exptl_crystal_size_max          0.50
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_exptl_crystal_size_min          0.21
_refine_diff_density_max         1.479
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         7770
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_refine_ls_restrained_S_all      0.728
_refine_ls_R_factor_all          0.0333
_refine_ls_R_factor_gt           0.0234
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.6695P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0740
_refine_ls_wR_factor_ref         0.0906
_reflns_number_gt                6553
_reflns_number_total             7770
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b712054k.txt
_cod_data_source_block           jab046_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        8337.8(16)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7006291