Self-assembly of alkyl N-acetylglyoxylic amides of varying chain lengths
Suryanti, Venty; Bhadbhade, Mohan; Bishop, Roger; Black, David StC; Kumar, Naresh; CrystEngComm 14 (2012) 7345–; doi:10.1039/c2ce25994j

data_7214777
_publ_section_title
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 Self-assembly of alkyl N-acetylglyoxylic amides of varying chain lengths
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_journal_issue                   21
_journal_name_full               CrystEngComm
_journal_page_first              7345
_journal_paper_doi               10.1039/c2ce25994j
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C18 H24 N2 O5'
_chemical_formula_weight         348.39
_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_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.240(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.0331(3)
_cell_length_b                   33.007(2)
_cell_length_c                   5.5043(3)
_cell_measurement_reflns_used    4293
_cell_measurement_temperature    155(2)
_cell_measurement_theta_max      30.070
_cell_measurement_theta_min      3.704
_cell_volume                     902.55(9)
_computing_cell_refinement       '<i>APEX2 </i>(Bruker, 2007)'
_computing_data_collection       '<i>APEX2 </i>(Bruker, 2007)'
_computing_data_reduction        '<i>APEX2 </i>(Bruker, 2007)'
_computing_molecular_graphics    '<i>SHELXTL-Plus</i> (Sheldrick, 2008)'
_computing_structure_refinement  '<i>SHELXL-97</i> (Sheldrick, 2008)'
_computing_structure_solution    '<i>SHELXS-97</i> (Sheldrick, 2008)'
_diffrn_ambient_temperature      155(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker kappa APEXII CCD Diffractometer'
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_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  0.0216
_diffrn_reflns_av_sigmaI/netI    0.0280
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       38
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            6437
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.70
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.9961
_exptl_absorpt_correction_T_min  0.9688
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2001)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.282
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plates
_exptl_crystal_F_000             372
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.131
_refine_diff_density_min         -0.162
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.5(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.352
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         3076
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.352
_refine_ls_R_factor_all          0.0330
_refine_ls_R_factor_gt           0.0299
_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^)+(0.0286P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0678
_refine_ls_wR_factor_ref         0.0692
_reflns_number_gt                2899
_reflns_number_total             3076
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25994j.txt
_cod_data_source_block           venty15_p21
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/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/automatic-downloads/retrospective/RSC/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 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7214777