Mechanistic insights into the potassium tert-butoxide-mediated synthesis of N-heterobiaryls.
Stephens, David E.; Lakey-Beitia, Johant; Burch, Jessica E.; Arman, Hadi D.; Larionov, Oleg V.; Chemical communications (Cambridge, England) 52 (2016) 9945–9948; doi:10.1039/c6cc04816a

data_7124813
_publ_section_title
;
 Mechanistic insights into the potassium tert-butoxide-mediated synthesis
 of N-heterobiaryls.
;
_journal_issue                   64
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9945
_journal_page_last               9948
_journal_paper_doi               10.1039/c6cc04816a
_journal_volume                  52
_journal_year                    2016
_chemical_formula_moiety         'C11 H9 N O'
_chemical_formula_sum            'C11 H9 N O'
_chemical_formula_weight         171.19
_chemical_name_systematic        '2-Phenylpyridine N-Oxide'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2015-06-29
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_audit_update_record
;
2016-04-14 deposited with the CCDC.
2016-07-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 114.257(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.8141(14)
_cell_length_b                   23.591(5)
_cell_length_c                   6.8413(16)
_cell_measurement_reflns_used    3924
_cell_measurement_temperature    293
_cell_measurement_theta_max      40.2
_cell_measurement_theta_min      3.3
_cell_volume                     855.5(3)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_details
;
scan:
	Number of images: 360
	           Slice: -125.0000 - 55.0000
	     Image width: 0.5000
	        Exp time: 40.0000
	   Rotation axis: Omega
	           Omega: 0.0000
	           Kappa: 0.0000
	             Phi: 0.0000
	             XTD: 34.9735
	          2theta: -35.0128
;
_diffrn_measurement_device
;
AFC12 (Right): Kappa 3 circle
;
_diffrn_measurement_device_type
;
Rigaku Saturn724 (2x2 bin mode)
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support Fiber
_diffrn_orient_matrix_type       d*Trek
_diffrn_orient_matrix_UB_11      -0.007005
_diffrn_orient_matrix_UB_12      0.153049
_diffrn_orient_matrix_UB_13      0.110075
_diffrn_orient_matrix_UB_21      -0.031068
_diffrn_orient_matrix_UB_22      0.015887
_diffrn_orient_matrix_UB_23      -0.024067
_diffrn_orient_matrix_UB_31      -0.101739
_diffrn_orient_matrix_UB_32      -0.012155
_diffrn_orient_matrix_UB_33      0.123313
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0269
_diffrn_reflns_av_unetI/netI     0.0370
_diffrn_reflns_Laue_measured_fraction_full 0.966
_diffrn_reflns_Laue_measured_fraction_max 0.966
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            2600
_diffrn_reflns_point_group_measured_fraction_full 0.966
_diffrn_reflns_point_group_measured_fraction_max 0.966
_diffrn_reflns_theta_full        25.047
_diffrn_reflns_theta_max         25.047
_diffrn_reflns_theta_min         3.695
_diffrn_source                   'Sealed Tube'
_diffrn_source_current           40.0
_diffrn_source_power             2.0
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.648
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Higashi, 1995)'
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_description       plate
_exptl_crystal_F_000             360
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.156
_refine_diff_density_min         -0.189
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1458
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0531
_refine_ls_R_factor_gt           0.0493
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0300P)^2^+0.5000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1102
_refine_ls_wR_factor_ref         0.1128
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1310
_reflns_number_total             1458
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6cc04816a2.cif
_cod_data_source_block           cd1337a
_cod_database_code               7124813
_shelx_estimated_absorpt_t_max   0.983
_shelx_estimated_absorpt_t_min   0.983
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C11(H11), C4(H4), C7(H7), C3(H3), C1(H1), C2(H2), C9(H9), C10(H10), C8(H8)
;
_shelx_res_checksum              44632
_shelx_shelxl_version_number     2014/7
_olex2_exptl_crystal_mounting_method 'glass fiber'
_olex2_submission_special_instructions 'No special instructions were received'