Formation of tetrameric water clusters driven by a cavitand template.
Massera, Chiara; Melegari, Monica; Ugozzoli, Franco; Dalcanale, Enrico; Chemical communications (Cambridge, England) 46 (2009) 88–90; doi:10.1039/b917931c

data_7105129
_publ_section_title
;
 Formation of tetrameric water clusters driven by a cavitand template.
;
_journal_issue                   1
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              88
_journal_page_last               90
_journal_paper_doi               10.1039/b917931c
_journal_volume                  46
_journal_year                    2009
_chemical_formula_sum            'C40 H54 Cl4 O18 P4'
_chemical_formula_weight         1088.51
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                69.9800(10)
_cell_angle_beta                 88.7130(10)
_cell_angle_gamma                82.9350(10)
_cell_formula_units_Z            2
_cell_length_a                   10.3676(4)
_cell_length_b                   13.1307(5)
_cell_length_c                   19.1132(8)
_cell_measurement_reflns_used    10405
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.98
_cell_measurement_theta_min      1.13
_cell_volume                     2425.63(17)
_computing_data_collection       SMART
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Giacovazzo et al., 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean '8.192 pixels/mm'
_diffrn_measured_fraction_theta_full 0.898
_diffrn_measured_fraction_theta_max 0.898
_diffrn_measurement_device_type  'BRUKER AXS SMART 1000'
_diffrn_measurement_method       omega-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0385
_diffrn_reflns_av_sigmaI/netI    0.0627
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            25175
_diffrn_reflns_theta_full        28.98
_diffrn_reflns_theta_max         28.98
_diffrn_reflns_theta_min         1.13
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.448
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.747528
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXS SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.490
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1132
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.709
_refine_diff_density_min         -0.415
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     611
_refine_ls_number_reflns         11553
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.0802
_refine_ls_R_factor_gt           0.0515
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0671P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1288
_refine_ls_wR_factor_ref         0.1368
_reflns_number_gt                7160
_reflns_number_total             11553
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b917931c.txt
_cod_data_source_block           tglicole
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7105129