Synthesis and Characterization of Diametrically Substituted Tetra-O-n-butylcalix[4]arene Ligands and Their Chelated Complexes of Titanium, Molybdenum, and Palladium
Daniel R. Evans; Mingsheng Huang; James C. Fettinger; Tracie L. Williams; Inorganic Chemistry 41 (2002) 5986–6000; doi:10.1021/ic020446b

data_4318841
_publ_contact_author_email       de44@umail.umd.edu
_publ_contact_author_fax         +1-301-314-9121
_publ_contact_author_name        'Prof Daniel R. Evans'
_publ_contact_author_phone       +1-301-405-8436
_publ_section_title
;
 Synthesis and Characterization of Diametrically Substituted
 Tetra-O-n-butylcalix[4]arene Ligands and Their Chelated Complexes of
 Titanium, Molybdenum, and Palladium
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5986
_journal_page_last               6000
_journal_paper_doi               10.1021/ic020446b
_journal_volume                  41
_journal_year                    2002
_chemical_formula_sum            'C47.5 H43.5 Cl7 O4 P4 Pd2'
_chemical_formula_weight         1263.15
_chemical_name_common            '[mu-ClPd(PPh2OH)(PPh2O)]2, 13'
_chemical_name_systematic
;
  ?
;
_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                 100.910(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.1973(19)
_cell_length_b                   15.4120(17)
_cell_length_c                   20.417(2)
_cell_measurement_temperature    293(2)
_cell_volume                     5313.6(10)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0559
_diffrn_reflns_av_sigmaI/netI    0.0441
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            60728
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    1.190
_exptl_crystal_density_diffrn    1.579
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2526
_refine_diff_density_max         1.105
_refine_diff_density_min         -0.730
_refine_diff_density_rms         0.129
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.124
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     658
_refine_ls_number_reflns         12158
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.124
_refine_ls_R_factor_all          0.0886
_refine_ls_R_factor_gt           0.0477
_refine_ls_shift/su_max          0.629
_refine_ls_shift/su_mean         0.023
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0632P)^2^+8.8917P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1257
_refine_ls_wR_factor_ref         0.1422
_reflns_number_gt                8345
_reflns_number_total             12158
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic020446b_06.cif
_cod_data_source_block           13
_cod_original_cell_volume        5313.7(10)
_cod_original_formula_sum        'C47.50 H43.50 Cl7 O4 P4 Pd2'
_cod_database_code               4318841