Concerted interaction between conjugated double bond CHs and multiple OHs in polyene macrolide antibiotic chainin: weak =C–H⋯O interactions responsible for intrinsic molecular assembly
In, Yasuko; Ohishi, Hirofumi; Ishida, Toshimasa; Igarashi, Yasuhiro; Chemical Communications (Cambridge, United Kingdom)  (2003) 1692–1693; doi:10.1039/b303047d

data_7103740
_publ_section_title
;
 Concerted interaction between conjugated double bond CHs and multiple OHs
 in polyene macrolide antibiotic chainin: weak =C--H&#x22EF;O interactions
 responsible for intrinsic molecular assembly
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   14
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              1692
_journal_page_last               1693
_journal_paper_doi               10.1039/b303047d
_journal_year                    2003
_chemical_formula_sum            'C33 H54 O10'
_chemical_formula_weight         610.76
_chemical_name_common            Chainin
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9524(10)
_cell_length_b                   9.9659(12)
_cell_length_c                   37.371(4)
_cell_measurement_reflns_used    3454
_cell_measurement_temperature    263(2)
_cell_measurement_theta_max      21.67
_cell_measurement_theta_min      2.32
_cell_volume                     3334.2(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'SAINT-Plus (Bruker, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      263(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'Bruker AXS SMART APEX CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'MacScience, M18XCE rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0636
_diffrn_reflns_av_sigmaI/netI    0.1022
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       49
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            20360
_diffrn_reflns_theta_full        28.29
_diffrn_reflns_theta_max         28.29
_diffrn_reflns_theta_min         1.09
_diffrn_standards_decay_%        0.28
_diffrn_standards_number         116
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9912
_exptl_absorpt_correction_T_min  0.9654
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.215
_refine_diff_density_min         -0.244
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.3(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     388
_refine_ls_number_reflns         7782
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.1642
_refine_ls_R_factor_gt           0.0696
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0719P)^2^+1.7326P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1490
_refine_ls_wR_factor_ref         0.1910
_reflns_number_gt                4009
_reflns_number_total             7782
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b303047d.txt
_cod_data_source_block           Chainin
_cod_original_sg_symbol_H-M      'P2(1)2(1)2(1) '
_cod_database_code               7103740