Phase Transition from TwoZ′ = 1 Forms to aZ′ = 2 Form of a Concomitant Conformational Polymorphic System
Long, Sihui; Siegler, Maxime A.; Mattei, Alessandra; Li, Tonglei; Crystal Growth & Design 11 (2011) 414–; doi:10.1021/cg101009g

data_4500135
_publ_section_title
;
 Phase Transition from TwoZ&#x2032; = 1 Forms to aZ&#x2032; = 2 Form of a
 Concomitant Conformational Polymorphic System
;
_journal_issue                   2
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              414
_journal_paper_doi               10.1021/cg101009g
_journal_volume                  11
_journal_year                    2011
_chemical_formula_moiety         'C15 H16 N2 O2'
_chemical_formula_sum            'C15 H16 N2 O2'
_chemical_formula_weight         256.30
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 100.7406(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.2035(3)
_cell_length_b                   14.0830(4)
_cell_length_c                   10.6939(4)
_cell_measurement_reflns_used    3240
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1.0
_cell_volume                     1361.78(8)
_computing_cell_refinement       'DENZO-SMN (Nonius, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997)'
_computing_data_reduction        'DENZO-SMN (Nonius, 1997)'
_computing_molecular_graphics    'XP in SHELXTL (Bruker, 1995)'
_computing_publication_material  'SHELX-97 and local procedures'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_diffrn_measurement_method       '\w scans at fixed \c = 55\%'
_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  0.0385
_diffrn_reflns_av_sigmaI/netI    0.0558
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6065
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.9983
_exptl_absorpt_correction_T_min  0.9591
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.329
_refine_diff_density_min         -0.224
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         3110
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0884
_refine_ls_R_factor_gt           0.0510
_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^)+(0.0779P)^2^+0.0588P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1211
_refine_ls_wR_factor_ref         0.1386
_reflns_number_gt                2072
_reflns_number_total             3110
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            cg101009g_si_003.cif
_cod_data_source_block           k09065
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               4500135