Cycloaddition reactions of polyenic donor-π-acceptor systems with an electron-rich alkyne: access to new chromophores with second-order optical nonlinearities.
Galán, Elena; Andreu, Raquel; Garín, Javier; Orduna, Jesús; Villacampa, Belén; Diosdado, Beatriz E.; Organic & biomolecular chemistry 10 (2012) 8684–8691; doi:10.1039/c2ob26515j

data_7152717
_publ_section_title
;
 Cycloaddition reactions of polyenic donor-\p-acceptor systems with an
 electron-rich alkyne: access to new chromophores with second-order
 optical nonlinearities.
;
_journal_issue                   43
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              8684
_journal_page_last               8691
_journal_paper_doi               10.1039/c2ob26515j
_journal_volume                  10
_journal_year                    2012
_chemical_formula_moiety         'C33 H31 N5 S'
_chemical_formula_sum            'C33 H31 N5 S'
_chemical_formula_weight         529.69
_chemical_name_systematic
2-{(E)-5-[(E)-3-{4-(Diethylamino)phenyl}-1-{4-(dimethylamino)phenyl}allylidene]-4-phenylthiazol-2-ylidene}malononitrile
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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
_audit_update_record
;
2011-11-22 # Formatted by publCIF
;
_cell_angle_alpha                66.612(7)
_cell_angle_beta                 77.281(4)
_cell_angle_gamma                77.711(5)
_cell_formula_units_Z            2
_cell_length_a                   8.5856(3)
_cell_length_b                   13.3808(10)
_cell_length_c                   13.8389(9)
_cell_measurement_reflns_used    3148
_cell_measurement_temperature    298(1)
_cell_measurement_theta_max      28.7939
_cell_measurement_theta_min      2.6567
_cell_volume                     1409.37(17)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.19 (release 28-02-2008 CrysAlis171 .NET)
(compiled Feb 28 2008,12:10:31)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.32.19 (release 28-02-2008 CrysAlis171 .NET)
(compiled Feb 28 2008,12:10:31)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.19 (release 28-02-2008 CrysAlis171 .NET)
(compiled Feb 28 2008,12:10:31)
;
_computing_molecular_graphics    'Diamond 3.2g'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    SIR-92
_diffrn_ambient_temperature      298(1)
_diffrn_detector_area_resol_mean 16.3990
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type
;
CCD-based four-circle diffractometer
;
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0973
_diffrn_reflns_av_sigmaI/netI    0.1691
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            27453
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.67
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.146
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.248
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_recrystallization_method
'diffusion of hexane into a solution of AcOEt at r.t.'
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.130
_refine_diff_density_min         -0.146
_refine_diff_density_rms         0.030
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.805
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     354
_refine_ls_number_reflns         4939
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.805
_refine_ls_R_factor_all          0.1598
_refine_ls_R_factor_gt           0.0419
_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^)+(0.0005P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0365
_refine_ls_wR_factor_ref         0.0424
_reflns_number_gt                1804
_reflns_number_total             4939
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c2ob26515j.txt
_cod_data_source_block           5a
_cod_original_cell_volume        1409.37(15)
_cod_database_code               7152717