Structural and melting point characterisation of six chiral ammonium naphthalene carboxylate salts
Lemmerer, Andreas; Bourne, Susan A.; Fernandes, Manuel A.; CrystEngComm 10 (2008) 1605–; doi:10.1039/b810068c

data_7202311
_publ_section_title
;
 Structural and melting point characterisation of six chiral ammonium
 naphthalene carboxylate salts
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              1605
_journal_paper_doi               10.1039/b810068c
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C12 H6 O4, 2(C8 H12 N)'
_chemical_formula_sum            'C28 H30 N2 O4'
_chemical_formula_weight         458.54
_chemical_name_common
'bis((R)-1-phenylethylammonium) naphthalene-2,6-dicarboxylate'
_chemical_name_systematic
;
bis((R)-1-phenylethylammonium) naphthalene-2,6-dicarboxylate
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2008-07-28T18:39:16-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 96.041(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.6633(4)
_cell_length_b                   6.3731(3)
_cell_length_c                   19.7210(7)
_cell_measurement_reflns_used    37785
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      0.41
_cell_volume                     1207.78(9)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics
;
Ortep-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 1999)
;
_computing_publication_material
;
WinGX publication routines (Farrugia, 1999) and PLATON (Spek, 2002)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius KappaCCD area-detector'
_diffrn_measurement_method       '1.8\% \w and \p scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.067
_diffrn_reflns_av_unetI/netI     0.0233
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            32802
_diffrn_reflns_theta_full        25.5
_diffrn_reflns_theta_max         25.5
_diffrn_reflns_theta_min         2.12
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.9919
_exptl_absorpt_correction_T_min  0.9526
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'Bruker XPREP (Bruker, 1999)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.186
_refine_diff_density_min         -0.183
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     327
_refine_ls_number_reflns         2456
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0412
_refine_ls_R_factor_gt           0.0329
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0564P)^2^+0.1265P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0813
_refine_ls_wR_factor_ref         0.0881
_reflns_number_gt                2156
_reflns_number_total             2456
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b810068c.txt
_cod_data_source_block           4
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7202311