Synthesis, characterisation and structure–property analysis of derivatives of the non-linear optical material 5-nitro-N-(1-phenylethyl)pyridin-2-amine
Langley, Philip J.; Bailey, Ray T.; Cruickshank, Frank R.; Kennedy, Alan R.; Lochran, Stephen; Pugh, David; Sherwood, John N.; Viikki, Anna; Wallis, John D.; Journal of Materials Chemistry 11 (2001) 1047–; doi:10.1039/b008124h

data_7204936
_publ_section_title
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 Synthesis, characterisation and structure--property analysis of
 derivatives of the non-linear optical material
 5-nitro-N-(1-phenylethyl)pyridin-2-amine
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_journal_issue                   4
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              1047
_journal_paper_doi               10.1039/b008124h
_journal_volume                  11
_journal_year                    2001
_chemical_formula_sum            'C14 H15 N3 O2'
_chemical_formula_weight         257.29
_chemical_melting_point          372.0(10)
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 96.520(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9790(10)
_cell_length_b                   15.977(2)
_cell_length_c                   9.410(2)
_cell_measurement_reflns_used    250
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.88
_cell_measurement_theta_min      2.18
_cell_volume                     1341.2(4)
_computing_cell_refinement       'REFINE (incorporated in MADNES)'
_computing_data_collection       'MADNES (Pflugrath & Messerschmidt,1989)''
_computing_data_reduction        'ABSMAD (Karaulov, 1991)'
_computing_publication_material  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Delft Instruments FAST-TV area- detector''
_diffrn_measurement_method       'Darr et al. (1993)'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.1075
_diffrn_reflns_av_sigmaI/netI    0.0907
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5980
_diffrn_reflns_theta_max         24.88
_diffrn_reflns_theta_min         2.18
_diffrn_standards_decay_%        'not measured'
_diffrn_standards_interval_count 'not measured'
_diffrn_standards_interval_time  'not measured'
_diffrn_standards_number         'not measured'
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.274
_exptl_crystal_description       block
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.279
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.075
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.54(152)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   0.942
_refine_ls_goodness_of_fit_obs   1.029
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     346
_refine_ls_number_reflns         3687
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.089
_refine_ls_restrained_S_obs      1.029
_refine_ls_R_factor_all          0.0643
_refine_ls_R_factor_obs          0.0481
_refine_ls_shift/esd_max         -0.004
_refine_ls_shift/esd_mean        0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0579P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1351
_refine_ls_wR_factor_obs         0.1101
_reflns_number_observed          2870
_reflns_number_total             3752
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b008124h.txt
_cod_data_source_block           compound_6
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '371-373' was changed to '372.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 
;
_cod_original_sg_symbol_H-M      P21
_cod_database_code               7204936