Coordination properties of cyclam (1,4,8,11-tetraazacyclotetradecane) endowed with two methylphosphonic acid pendant arms in the 1,4-positions
Havlíčková, Jana; Medová, Hana; Vitha, Tomáš; Kotek, Jan; Císařová, Ivana; Hermann, Petr; Dalton Transactions  (2008) 5378–5386; doi:10.1039/b803235a

data_7004148
_publ_section_title
;
 Coordination properties of cyclam (1,4,8,11-tetraazacyclotetradecane)
 endowed with two methylphosphonic acid pendant arms in the
 1,4-positions
;
_journal_issue                   39
_journal_name_full               'Dalton Transactions'
_journal_page_first              5378
_journal_page_last               5386
_journal_paper_doi               10.1039/b803235a
_journal_year                    2008
_chemical_compound_source        'synthesized by the authors'
_chemical_formula_moiety         'C24 H40 N4, 2(H2 O), 4(Br)'
_chemical_formula_sum            'C24 H44 Br4 N4 O2'
_chemical_formula_weight         740.27
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.6839(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.27000(10)
_cell_length_b                   20.5765(4)
_cell_length_c                   20.0208(4)
_cell_measurement_reflns_used    16767
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2952.26(9)
_computing_cell_refinement       'COLLECT and DENZO'
_computing_data_collection
'COLLECT (Hooft, 1998) and DENZO (Otwinowski & Minor, 1997)'
_computing_data_reduction        'COLLECT and DENZO'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius KappaCCD area detector'
_diffrn_measurement_method       '\f and \w scans to fill the Ewald sphere'
_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  0.0428
_diffrn_reflns_av_sigmaI/netI    0.0233
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            28031
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         1.98
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.480
_exptl_absorpt_correction_T_max  0.7003
_exptl_absorpt_correction_T_min  0.2902
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Gaussian integration (Coppens, 1970)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.666
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1488
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.551
_refine_diff_density_min         -0.661
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         3408
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0381
_refine_ls_R_factor_gt           0.0273
_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^)+(0.0273P)^2^+7.3214P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0609
_refine_ls_wR_factor_ref         0.0659
_reflns_number_gt                2854
_reflns_number_total             3408
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b803235a.txt
_cod_data_source_block           14bn2cam
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7004148