Crystal Engineering Approach toward Selective Formation of an Asymmetric Supramolecular Synthon in Primary Ammonium Monocarboxylate (PAM) Salts and Their Gelation Studies
Adalder, Tapas Kumar; Dastidar, Parthasarathi; Crystal Growth & Design 14 (2014) 2254–; doi:10.1021/cg401863s

data_4510424
_publ_section_title
;
 Crystal Engineering Approach toward Selective Formation of an Asymmetric
 Supramolecular Synthon in Primary Ammonium Monocarboxylate (PAM) Salts
 and Their Gelation Studies
;
_journal_issue                   5
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2254
_journal_paper_doi               10.1021/cg401863s
_journal_volume                  14
_journal_year                    2014
_chemical_absolute_configuration S
_chemical_formula_moiety         'C8 H6 N O4, C8 H12 N'
_chemical_formula_sum            'C16 H18 N2 O4'
_chemical_formula_weight         302.32
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 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                 94.277(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.4839(6)
_cell_length_b                   5.86480(10)
_cell_length_c                   14.7362(4)
_cell_measurement_temperature    296(2)
_cell_volume                     1593.02(7)
_computing_cell_refinement       'BRUKER APEX II'
_computing_data_collection       'BRUKER APEX II'
_computing_data_reduction        'BRUKER APEX II'
_computing_molecular_graphics    'MERCURY 3.1, PLATON'
_computing_publication_material  'MERCURY 3.1, PLATON'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'BRUKER CCD AREA DETECTOR'
_diffrn_measurement_method       'PHI-OMEGA 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  0.0167
_diffrn_reflns_av_sigmaI/netI    0.0134
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            10454
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.39
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9909
_exptl_absorpt_correction_T_min  0.9731
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       NIDDLE
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.117
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3060
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0405
_refine_ls_R_factor_gt           0.0370
_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^)+(0.0669P)^2^+0.2474P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1030
_refine_ls_wR_factor_ref         0.1081
_reflns_number_gt                2848
_reflns_number_total             3060
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg401863s_si_002.cif
_cod_data_source_block           (S)-PEA.4NPA
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'MONOCLINIC' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN'
changed to 'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4510410--4510441.cif.
;
_cod_original_sg_symbol_H-M      C2
_cod_database_code               4510424