Thiazole‒Carbonyl Interactions: A Case Study Using Phenylalanine Thiazole Cyclic Tripeptides
Mali, Sachitanand M.; Schneider, Tobias F.; Bandyopadhyay, Anupam; Jadhav, Sandip V.; Werz, Daniel B.; Gopi, Hosahudya N.; Crystal Growth & Design 12 (2012) 5643–; doi:10.1021/cg301147s

data_4506951
_publ_section_title
;
 Thiazole--Carbonyl Interactions: A Case Study Using Phenylalanine
 Thiazole Cyclic Tripeptides
;
_journal_issue                   11
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              5643
_journal_paper_doi               10.1021/cg301147s
_journal_volume                  12
_journal_year                    2012
_chemical_absolute_configuration syn
_chemical_compound_source        Synthesis
_chemical_formula_moiety         'C39 H36 N6 O6 S3,( C7 H8)'
_chemical_formula_sum            'C46 H44 N6 O6 S3'
_chemical_formula_weight         873.05
_chemical_melting_point          154
_chemical_name_common            'Cyclic peptide'
_chemical_name_systematic        'Tyrosine tricyclic Thz peptide'
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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                   10.477(3)
_cell_length_b                   18.005(5)
_cell_length_c                   22.648(6)
_cell_measurement_temperature    100(2)
_cell_volume                     4272(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_pressure         101.325
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0206
_diffrn_reflns_av_sigmaI/netI    0.0290
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            24079
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.14
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'Graphite monochromator'
_exptl_absorpt_coefficient_mu    0.231
_exptl_absorpt_correction_T_max  0.93
_exptl_absorpt_correction_T_min  0.91
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'square block'
_exptl_crystal_F_000             1832
_exptl_crystal_recrystallization_method Toluene
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.229
_refine_diff_density_min         -0.277
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     554
_refine_ls_number_reflns         10310
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0330
_refine_ls_shift/su_max          0.110
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0600P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0876
_refine_ls_wR_factor_ref         0.0910
_reflns_number_gt                9498
_reflns_number_total             10310
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg301147s_si_002.cif
_cod_data_source_block           hng_tyr_thz_tricp_tolu
_cod_database_code               4506951