Salen complexes based on 1,4-diaminocyclohexane and their exploitation for the polymerisation of rac-lactide
Hancock, Stuart L.; Mahon, Mary F.; Jones, Matthew D.; New Journal of Chemistry 37 (2013) 1996–; doi:10.1039/c3nj00111c

data_7053047
_publ_section_title
;
 Salen complexes based on 1,4-diaminocyclohexane and their exploitation
 for the polymerisation of rac-lactide
;
_journal_issue                   7
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1996
_journal_paper_doi               10.1039/c3nj00111c
_journal_volume                  37
_journal_year                    2013
_chemical_formula_sum            'C24 H41 N O4 Ti'
_chemical_formula_weight         455.48
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 114.6170(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4230(2)
_cell_length_b                   22.8100(5)
_cell_length_c                   12.5010(2)
_cell_measurement_reflns_used    6227
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.51
_cell_volume                     2701.97(9)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV 1997-2004)'
_computing_data_reduction        'Denzo & Scalepack (Otwinowski, Minor 1997)'
_computing_molecular_graphics    'ORTEX (P.McArdle 1995)'
_computing_publication_material  'SHELXL-97/2 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97/2 (Sheldrick 1997)'
_computing_structure_solution
;
SIR97- Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C. ,
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
(1999) J. Appl. Cryst. 32, 115-119.
;
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'nonius kappa ccd'
_diffrn_measurement_method       ccd
_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  0.1081
_diffrn_reflns_av_sigmaI/netI    0.0557
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            39062
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         3.59
_exptl_absorpt_coefficient_mu    0.342
_exptl_absorpt_correction_T_max  0.9347
_exptl_absorpt_correction_T_min  0.8753
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'multi-scan Sortav (Blessing 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.120
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.901
_refine_diff_density_min         -0.656
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.110
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         6195
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0892
_refine_ls_R_factor_gt           0.0691
_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^)+(0.1034P)^2^+1.1489P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1764
_refine_ls_wR_factor_ref         0.1912
_reflns_number_gt                4785
_reflns_number_total             6195
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3nj00111c.txt
_cod_data_source_block           Ti2(OiPr)6(1)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7053047