Investigation on the flexibility of chiral tricyclic derivatives
Altamura, Maria; Dapporto, Paolo; Guidi, Antonio; Harmat, Nicholas J. S.; Jierry, Loïc; Libralesso, Elisa; Paoli, Paola; Rossi, Patrizia; New Journal of Chemistry 32 (2008) 1617–; doi:10.1039/b801569d

data_7051958
_publ_section_title
;
 Investigation on the flexibility of chiral tricyclic derivatives
;
_journal_issue                   9
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1617
_journal_paper_doi               10.1039/b801569d
_journal_volume                  32
_journal_year                    2008
_chemical_formula_sum            'C15 H11 N O4'
_chemical_formula_weight         269.25
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                68.89(2)
_cell_angle_beta                 80.780(10)
_cell_angle_gamma                75.12(2)
_cell_formula_units_Z            2
_cell_length_a                   7.5530(10)
_cell_length_b                   8.305(2)
_cell_length_c                   10.514(2)
_cell_measurement_temperature    150
_cell_volume                     592.9(2)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_computing_molecular_graphics    'ORTEP-3 (Farruggia, 1997)'
_computing_publication_material  'PARST97 (Nardelli, 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare, 1999)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 16.4547
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.866
_diffrn_measurement_device_type  'Xcalibur3 4 circles diffractometer'
_diffrn_measurement_method       'intensity from \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0303
_diffrn_reflns_av_sigmaI/netI    0.0680
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6833
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         28.50
_diffrn_reflns_theta_min         4.17
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_exptl_crystal_density_diffrn    1.508
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             280
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.243
_refine_diff_density_min         -0.194
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.895
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     225
_refine_ls_number_reflns         2599
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.895
_refine_ls_R_factor_all          0.0737
_refine_ls_R_factor_gt           0.0416
_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^)+(0.0469P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0848
_refine_ls_wR_factor_ref         0.0943
_reflns_number_gt                1500
_reflns_number_total             2599
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b801569d.txt
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7051958