Synthesis, characterization and X-ray structure of 3,4-lutidinyl-, 3-/4-picolyl- and pyridylselenium compounds
Jaspreet S. Dhau; Amritpal Singh; Avtar Singh; Balwinder S. Sooch; Paula Brandao; Vitor Felix; Inorganica Chimica Acta 392 (2012) 335–344; doi:10.1016/j.ica.2012.03.043

data_1512632
_publ_section_title
;
 Synthesis, characterization and X-ray structure of 3,4-lutidinyl-,
 3-/4-picolyl- and pyridylselenium compounds
;
_journal_name_full
;
Inorganica Chimica Acta
;
_journal_page_first              335
_journal_page_last               344
_journal_paper_doi               10.1016/j.ica.2012.03.043
_journal_volume                  392
_journal_year                    2012
_chemical_formula_sum            'C10 H15 N Se3'
_chemical_formula_weight         386.11
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 101.042(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.2757(2)
_cell_length_b                   27.3034(12)
_cell_length_c                   9.0001(4)
_cell_measurement_temperature    150(2)
_cell_volume                     1272.41(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'PLATON (Spek, 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       'omega and phi scans'
_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  0.0209
_diffrn_reflns_av_sigmaI/netI    0.0202
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            13158
_diffrn_reflns_theta_full        29.22
_diffrn_reflns_theta_max         29.22
_diffrn_reflns_theta_min         1.49
_diffrn_standards_interval_count 0.5
_diffrn_standards_interval_time  20
_exptl_absorpt_coefficient_mu    8.637
_exptl_absorpt_correction_T_max  0.4788
_exptl_absorpt_correction_T_min  0.2770
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.016
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.449
_refine_diff_density_min         -0.674
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     131
_refine_ls_number_reflns         3446
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0326
_refine_ls_R_factor_gt           0.0261
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0217P)^2^+2.1134P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0585
_refine_ls_wR_factor_ref         0.0605
_reflns_number_gt                3021
_reflns_number_total             3446
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ICA-2012-392-335-344-5.cif
_cod_data_source_block           compound_9a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0217P)^2^+2.1134P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0217P)^2^+2.1134P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               1512632