Bispidine as a helix inducing scaffold: examples of helically folded linear peptides
V. Haridas; Sandhya Sadanandan; M. V. S. Gopalakrishna; M. B. Bijesh; Ram. P. Verma; Srinivas Chinthalapalli; Ashutosh Shandilya; Chem.Commun. 49 (2013) 10980–; doi:10.1039/c3cc45649h

data_7110026
_publ_section_title
;
 Bispidine as a helix inducing scaffold: examples of helically folded
 linear peptides
;
_journal_name_full               Chem.Commun.
_journal_page_first              10980
_journal_paper_doi               10.1039/c3cc45649h
_journal_volume                  49
_journal_year                    2013
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C38 H60 N6 O8'
_chemical_formula_sum            'C38 H60 N6 O8'
_chemical_formula_weight         728.92
_chemical_melting_point          439.1(10)
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 94.215(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.848(3)
_cell_length_b                   9.570(2)
_cell_length_c                   15.768(4)
_cell_measurement_temperature    273(2)
_cell_volume                     2084.0(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0619
_diffrn_reflns_av_sigmaI/netI    0.0798
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            20052
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.942
_exptl_absorpt_correction_T_min  0.839
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             788
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.429
_refine_diff_density_min         -0.243
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     469
_refine_ls_number_reflns         7293
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.1256
_refine_ls_R_factor_gt           0.0945
_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^)+(0.0960P)^2^+0.8731P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2053
_refine_ls_wR_factor_ref         0.2225
_reflns_number_gt                5480
_reflns_number_total             7293
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc45649h.txt
_cod_data_source_block           hari11
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '165-167 degree celsius' was changed
to '439.1(10)' - it was converted from degrees Celsius(C) to
Kelvins(K), the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_Hall     ' P 2yb'
_cod_original_sg_symbol_H-M      P21
_cod_database_code               7110026