Synthesis, structure and metal compounds of a novel chromophoric cyanamide ligand
Adams, Christopher J.; Journal of the Chemical Society, Dalton Transactions  (1999) 2059–; doi:10.1039/a901959f

data_7027379
_publ_section_title
;
 Synthesis, structure and metal compounds of a novel chromophoric
 cyanamide ligand
;
_journal_issue                   12
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              2059
_journal_paper_doi               10.1039/a901959f
_journal_year                    1999
_chemical_formula_sum            'C38 H31 As N2 O3'
_chemical_formula_weight         638.57
_chemical_name_systematic        'Compound 3'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                96.84(3)
_cell_angle_beta                 97.86(3)
_cell_angle_gamma                107.43(3)
_cell_formula_units_Z            2
_cell_length_a                   12.905(3)
_cell_length_b                   13.584(3)
_cell_length_c                   9.2290(18)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      10
_cell_volume                     1507.0(7)
_computing_cell_refinement       'Rigaku control software'
_computing_data_collection       'Rigaku control software'
_computing_data_reduction        TeXsan
_computing_molecular_graphics    'SHELXTL-PLUS (Sheldrick, 1991)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku AFC7R'
_diffrn_measurement_method       'omega/2theta scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0353
_diffrn_reflns_av_sigmaI/netI    0.0683
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            9368
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.54
_diffrn_standards_interval_count 200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.170
_exptl_absorpt_correction_T_max  0.8083
_exptl_absorpt_correction_T_min  0.7913
_exptl_absorpt_correction_type   'Semi empirical psi scans'
_exptl_crystal_colour            'Reddish purple'
_exptl_crystal_density_diffrn    1.407
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             660
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.314
_refine_diff_density_min         -0.323
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     413
_refine_ls_number_reflns         6912
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0633
_refine_ls_R_factor_gt           0.0414
_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^)+(0.0285P)^2^+0.4211P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0848
_refine_ls_wR_factor_ref         0.0930
_reflns_number_gt                5464
_reflns_number_total             6912
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            901959fsup1.cif
_cod_data_source_block           pr9902
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        1507.0(5)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7027379