Syntheses and tunable emission properties of 2-alkynyl azulenes.
Koch, Michael; Blacque, Olivier; Venkatesan, Koushik; Organic letters 14 (2012) 1580–1583; doi:10.1021/ol300327b

data_1507185
_publ_section_title
;
 Syntheses and tunable emission properties of 2-alkynyl azulenes.
;
_journal_issue                   6
_journal_name_full               'Organic letters'
_journal_page_first              1580
_journal_page_last               1583
_journal_paper_doi               10.1021/ol300327b
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C18 H7 F5'
_chemical_formula_sum            'C18 H7 F5'
_chemical_formula_weight         318.24
_chemical_name_systematic        ' 2-[(pentafluorophenyl)ethynyl]azulene'
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.535(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0895(3)
_cell_length_b                   30.5179(9)
_cell_length_c                   6.8117(2)
_cell_measurement_reflns_used    5465
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      32.56
_cell_measurement_theta_min      2.66
_cell_volume                     1426.59(9)
_computing_cell_refinement
;
CrysAlisPro, version 1.171.33.55 (Agilent, 2011)
;
_computing_data_collection
;
CrysAlisPro, version 1.171.33.55 (Agilent, 2011)
;
_computing_data_reduction
;
CrysAlisPro, version 1.171.33.55 (Agilent, 2011)
;
_computing_molecular_graphics
;
DIAMOND (Brandenburg, 2006)
;
_computing_publication_material
; 
<i>WinGX</i> (Farrugia, 1999), <i>PLATON for Windows</i> (Spek, 2003) and
<i>publCIF</i> (Westrip, 2010)
;
_computing_structure_refinement  ' SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    ' SHELXS97 (Sheldrick, 2008) '
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean 10.4498
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Xcalibur, Ruby'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0220
_diffrn_reflns_av_sigmaI/netI    0.0169
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       42
_diffrn_reflns_limit_k_min       -42
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            12383
_diffrn_reflns_theta_full        29.56
_diffrn_reflns_theta_max         29.56
_diffrn_reflns_theta_min         2.67
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_T_max  0.990
_exptl_absorpt_correction_T_min  0.964
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_exptl_absorpt_process_details
;
CrysAlisPro, Version 1.171.33.55 (Agilent, 2011)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by Clark & Reid (1995).
;
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.482
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.222
_refine_diff_density_min         -0.255
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.129
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         2007
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.129
_refine_ls_R_factor_all          0.0535
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0663P)^2^+0.0524P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1151
_refine_ls_wR_factor_ref         0.1199
_reflns_number_gt                1512
_reflns_number_total             2007
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol300327b_si_002.cif
_cod_data_source_block           8
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1507185