A new multitalented azine ligand: elastic bending, single-crystal-to-single-crystal transformation and a fluorescence turn–on Al(III) sensor
Saini, Anoop Kumar; Natarajan, Kaushik; Mobin, Shaikh M.; Chem. Commun.  (2017) –; doi:10.1039/C7CC04392A

data_7120543
_publ_section_title
;
 A new multitalented azine ligand: elastic bending,
 single-crystal-to-single-crystal transformation and a fluorescence
 turn--on Al(III) sensor
;
_journal_name_full               'Chem. Commun.'
_journal_paper_doi               10.1039/C7CC04392A
_journal_year                    2017
_chemical_formula_sum            'C14 H10 Br2 N2'
_chemical_formula_weight         366.06
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-07-31 deposited with the CCDC.
2017-08-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.434(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   3.8997(4)
_cell_length_b                   7.1770(5)
_cell_length_c                   24.082(3)
_cell_measurement_reflns_used    356
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.3780
_cell_measurement_theta_min      4.4000
_cell_volume                     673.99(12)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.873
_diffrn_measurement_device_type  'OXFORD DIFFRACTION SUPER NOVA'
_diffrn_measurement_method       \w/q-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Micro-Focus (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_unetI/netI     0.0707
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.873
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            4630
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.873
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.906
_diffrn_reflns_theta_min         3.305
_exptl_absorpt_coefficient_mu    5.996
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.16001
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.804
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.230
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.090
_refine_diff_density_max         2.699
_refine_diff_density_min         -0.808
_refine_diff_density_rms         0.280
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.171
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     84
_refine_ls_number_reflns         4630
_refine_ls_number_restraints     60
_refine_ls_restrained_S_all      1.170
_refine_ls_R_factor_all          0.1737
_refine_ls_R_factor_gt           0.1250
_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^)+(0.2000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3152
_refine_ls_wR_factor_ref         0.3734
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2696
_reflns_number_total             4630
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7cc04392a7.cif
_cod_data_source_block           L2
_cod_database_code               7120543
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.339
_shelx_estimated_absorpt_t_max   0.614
_shelx_res_checksum              6948
_shelx_hkl_checksum              15470