Polymorphism and Migratory Chiral Resolution of the Free Base of Venlafaxine. A Remarkable Topotactical Solid State Transition from a Racemate to a Racemic Conglomerate
van Eupen, J. Th. H.; Elffrink, W. W. J.; Keltjens, R.; Bennema, P.; de Gelder, R.; Smits, J. M. M.; van Eck, E. R. H.; Kentgens, A. P. M.; Deij, M. A.; Meekes, H.; Vlieg, E.; Crystal Growth & Design 8 (2008) 71–; doi:10.1021/cg700831z

data_4503235
_publ_contact_author
;
        H. Meekes    
        Solid State Chemistry             
        Institute for Molecules and Materials
        Radboud University Nijmegen
        Toernooiveld 1
        6525 ED  Nijmegen
        The Netherlands
;
_publ_section_title
;
 Polymorphism and Migratory Chiral Resolution of the Free Base of
 Venlafaxine. A Remarkable Topotactical Solid State Transition from a
 Racemate to a Racemic Conglomerate
;
_journal_issue                   1
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              71
_journal_paper_doi               10.1021/cg700831z
_journal_volume                  8
_journal_year                    2008
_chemical_formula_sum            'C17 H27 N O2'
_chemical_formula_weight         277.40
_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_date             2007-01-04
_audit_creation_method           'SHELXL, adapted and expanded'
_cell_angle_alpha                90.00
_cell_angle_beta                 92.217(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3248(3)
_cell_length_b                   8.8240(4)
_cell_length_c                   21.6121(11)
_cell_measurement_reflns_used    127
_cell_measurement_temperature    208(2)
_cell_measurement_theta_max      27.500
_cell_measurement_theta_min      2.490
_cell_volume                     1586.39(12)
_computing_data_collection
;
Nonius "Collect" program suite (Nonius, 1999)
;
_computing_data_reduction
;
Nonius "EvalCCD" program suite (Duisenberg, 1998)
;
_computing_molecular_graphics
;
PLATON (Spek, 2003)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
CRUNCH (de Gelder et al., 1993),
;
_diffrn_ambient_temperature      208(2)
_diffrn_detector_area_resol_mean 18.4
_diffrn_measured_fraction_theta_full 0.933
_diffrn_measured_fraction_theta_max 0.938
_diffrn_measurement_device       'Nonius KappaCCD'
_diffrn_measurement_method       'area detector \f and \w scan'
_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  0.0224
_diffrn_reflns_av_sigmaI/netI    0.0143
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            38876
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.49
_diffrn_standards_decay_%        0.000
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.987
_exptl_absorpt_correction_T_min  0.857
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS multiscan (Sheldrick, 1996)'
_exptl_crystal_colour            'translucent colourless'
_exptl_crystal_density_diffrn    1.161
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rather regular large thick platelet'
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.245
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.073
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         3648
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0590
_refine_ls_R_factor_gt           0.0457
_refine_ls_R_factor_obs          0.0457
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
w=1/[\s^2^(Fo^2^)+(0.0427P)^2^+0.5777P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1101
_refine_ls_wR_factor_gt          0.1023
_refine_ls_wR_factor_obs         0.1023
_refine_ls_wR_factor_ref         0.1101
_reflns_number_gt                2984
_reflns_number_observed          2984
_reflns_number_total             3648
_reflns_observed_criterion       >2sigma(I)
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg700831z-file006.cif
_cod_data_source_block           ZJK18V
_cod_depositor_comments
;
The following automatic conversions were performed:
'_publ_contact_autor' tag replaced with '_publ_contact_author'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (21
time).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (29 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4503235