Are Terminal Aryl Butadiynes Stable? Synthesis and X-ray Crystal Structures of a Series of Aryl- and Heteroaryl-butadiynes (Ar-C\τbC-C\τbC-H)
Kara West; Changsheng Wang; Andrei S. Batsanov; Martin R. Bryce; Journal of Organic Chemistry 71 (2006) 8541–8544; doi:10.1021/jo0615697

data_4022058
_publ_contact_author             'Andrei S.Batsanov'
_publ_contact_author_email       a.s.batsanov@durham.ac.uk
_publ_section_title
;
 Are Terminal Aryl Butadiynes Stable? Synthesis and X-ray Crystal
 Structures of a Series of Aryl- and Heteroaryl-butadiynes
 (Ar-C\\tbC-C\\tbC-H)
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8541
_journal_page_last               8544
_journal_paper_doi               10.1021/jo0615697
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C9 H5 N'
_chemical_formula_sum            'C9 H5 N'
_chemical_formula_weight         127.14
_chemical_name_systematic
; 
 4-(buta-1,3-diynyl)-pyridine 
;
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                104.261(4)
_cell_angle_beta                 92.738(4)
_cell_angle_gamma                92.274(4)
_cell_formula_units_Z            2
_cell_length_a                   3.8203(4)
_cell_length_b                   8.8878(9)
_cell_length_c                   10.3102(11)
_cell_measurement_reflns_used    547
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.44
_cell_measurement_theta_min      3.49
_cell_volume                     338.42(6)
_computing_cell_refinement       'SAINT version 6.28A (Bruker, 2002)'
_computing_data_collection       'SMART version 5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT version 6.28A (Bruker, 2002)'
_computing_molecular_graphics    'SHELXTL version 6.14 (Bruker, 2003)'
_computing_publication_material  'SHELXTL version 6.14 (Bruker, 2003)'
_computing_structure_refinement  'SHELXTL version 6.14 (Bruker, 2003)'
_computing_structure_solution    'SHELXTL version 6.12 (Bruker, 2001)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.946
_diffrn_measured_fraction_theta_max 0.946
_diffrn_measurement_device_type  'ProteumM APEX CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source
'60W microfocus Bede Microsource with glass polycapillary optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0253
_diffrn_reflns_av_sigmaI/netI    0.0585
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            2413
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.49
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.248
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             132
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.178
_refine_diff_density_min         -0.167
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.858
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     111
_refine_ls_number_reflns         1460
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.858
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0420
_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^)+(0.0370P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0882
_reflns_number_gt                939
_reflns_number_total             1460
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo0615697si20060728_103547_6.cif
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4022058