Proton sharing and transfer in some zwitterionic compounds based on 4-oxo-4-((1-phenethylpiperidin-4-yl)(phenyl)amino)alcanoic acids
Nichol, Gary S.; Kumirov, Vlad K.; Vardanyan, Ruben; Hruby, Victor J.; CrystEngComm 12 (2010) 3651–; doi:10.1039/b923698h

data_7212262
_publ_section_title
;
 Proton sharing and transfer in some zwitterionic compounds based on
 4-oxo-4-((1-phenethylpiperidin-4-yl)(phenyl)amino)alcanoic acids
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              3651
_journal_paper_doi               10.1039/b923698h
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C24 H30 N2 O3, C4 H8 O2'
_chemical_formula_sum            'C28 H38 N2 O5'
_chemical_formula_weight         482.60
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                78.622(4)
_cell_angle_beta                 75.813(3)
_cell_angle_gamma                74.623(3)
_cell_formula_units_Z            2
_cell_length_a                   9.3005(4)
_cell_length_b                   9.7222(5)
_cell_length_c                   14.4230(7)
_cell_measurement_reflns_used    2685
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      67.30
_cell_measurement_theta_min      4.77
_cell_volume                     1206.84(10)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'ORTEP3 for Windows (Farrugia, 1997)'
_computing_publication_material  'SHELXTL and local programs'
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.961
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_device_type  'Bruker Kappa APEXII DUO CCD diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'fine-focus sealed tube with Miracol optics'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0400
_diffrn_reflns_av_sigmaI/netI    0.0355
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4181
_diffrn_reflns_theta_full        67.45
_diffrn_reflns_theta_max         67.45
_diffrn_reflns_theta_min         3.19
_exptl_absorpt_coefficient_mu    0.731
_exptl_absorpt_correction_T_max  0.9123
_exptl_absorpt_correction_T_min  0.8150
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS; Sheldrick, 1996'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.328
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_platon_squeeze_details
;
One molecule of ethyl acetate, both whole-molecule disordered and over an
inversion centre, per asymmetric unit removed with SQUEEZE.
;
_refine_diff_density_max         0.375
_refine_diff_density_min         -0.409
_refine_diff_density_rms         0.046
_refine_ls_extinction_coef       0.0046(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     266
_refine_ls_number_reflns         4181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0639
_refine_ls_R_factor_gt           0.0497
_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^)+(0.0681P)^2^+0.3906P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1284
_refine_ls_wR_factor_ref         0.1356
_reflns_number_gt                3304
_reflns_number_total             4181
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b923698h.txt
_cod_data_source_block           3
_cod_database_code               7212262