1,3-Bis(N,N,N',N'-tetramethylguanidino)propane: synthesis, characterization and bonding properties of the first bidentate, peralkylated guanidine ligand †
Pohl, Siegfried; Harmjanz, Michael; Schneider, Jörg; Saak, Wolfgang; Henkel, Gerald; Journal of the Chemical Society, Dalton Transactions  (2000) 3473–; doi:10.1039/b002554m

data_7009666
_publ_section_title
;
 1,3-Bis(N,N,N',N'-tetramethylguanidino)propane: synthesis,
 characterization and bonding properties of the first bidentate,
 peralkylated guanidine ligand&#x200A;&#x2020;
;
_journal_issue                   19
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              3473
_journal_paper_doi               10.1039/b002554m
_journal_year                    2000
_chemical_formula_sum            'C13 H30 Cu I N6'
_chemical_formula_weight         460.87
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 96.72(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.839(2)
_cell_length_b                   9.864(4)
_cell_length_c                   25.026(8)
_cell_measurement_reflns_used    18
_cell_measurement_temperature    150
_cell_measurement_theta_max      20
_cell_measurement_theta_min      10
_cell_volume                     1921.8(11)
_computing_cell_refinement       'P3 (Siemens, 1991)'
_computing_data_collection       'P3 (Siemens, 1991)'
_computing_data_reduction        'P3 (Siemens, 1991)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-90 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Siemens P4RA'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus rotating anode tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0295
_diffrn_reflns_av_sigmaI/netI    0.0495
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            4479
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.22
_diffrn_standards_interval_count 99
_diffrn_standards_number         1
_exptl_absorpt_coefficient_mu    2.747
_exptl_absorpt_correction_T_max  0.804
_exptl_absorpt_correction_T_min  0.681
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            'slightly yellow'
_exptl_crystal_density_diffrn    1.593
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.71
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         1.296
_refine_diff_density_min         -0.706
_refine_diff_density_rms         0.214
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         4172
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0724
_refine_ls_R_factor_gt           0.0463
_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^)+(0.0832P)^2^+7.8638P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1246
_refine_ls_wR_factor_ref         0.1555
_reflns_number_gt                3166
_reflns_number_total             4172
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b002554m.txt
_cod_data_source_block           (2)
_cod_original_sg_symbol_H-M      'P21 /n'
_cod_database_code               7009666