General Synthetic Approach toward Geminal-Substituted Tetraarylethene Fluorophores with Tunable Emission Properties: X-ray Crystallography, Aggregation-Induced Emission and Piezofluorochromism
Zhang, Guo-Feng; Wang, Hongfeng; Aldred, Matthew P.; Chen, Tao; Chen, Ze-Qiang; Meng, Xianggao; Zhu, Ming-Qiang; Chemistry of Materials 26 (2014) 4433–; doi:10.1021/cm501414b

data_4002029
_publ_section_title
;
 General Synthetic Approach toward Geminal-Substituted Tetraarylethene
 Fluorophores with Tunable Emission Properties: X-ray Crystallography,
 Aggregation-Induced Emission and Piezofluorochromism
;
_journal_issue                   15
_journal_name_full               'Chemistry of Materials'
_journal_page_first              4433
_journal_paper_doi               10.1021/cm501414b
_journal_volume                  26
_journal_year                    2014
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_cell_length_a                   13.7789(17)
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_computing_cell_refinement       'Bruker SAINT'
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_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
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_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
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_exptl_crystal_colour            colourless
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_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
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_refine_diff_density_max         0.430
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0795P)^2^+0.6610P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1536
_refine_ls_wR_factor_ref         0.1751
_reflns_number_gt                3573
_reflns_number_total             4702
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm501414b_si_002.cif
_cod_data_source_block           DPDN1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4002028--4002033.cif.
;
_cod_original_cell_volume        2409.3(5)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4002029