A Conformationally Switchable Fluorescent Oligophenol Foldamer for Selective Sensing of Copper(II) Ions
Liu, Jiaqiang; Sun, Chang; Ma, Wenliang; Lu, Yu-Jing; Yu, Lin; Zhang, Kun; Zeng, Huaqiang; RSC Adv.  (2014) –; doi:10.1039/C4RA11706A

data_7218538
_publ_section_title
;
 A Conformationally Switchable Fluorescent Oligophenol Foldamer for
 Selective Sensing of Copper(II) Ions
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA11706A
_journal_year                    2014
_chemical_formula_sum            'C25.13 H25.88 N3 Na O11'
_chemical_formula_weight         568.85
_chemical_name_systematic        'Trimer 5'
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.2734(12)
_cell_length_b                   15.273
_cell_length_c                   23.031(2)
_cell_measurement_reflns_used    2952
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      21.13
_cell_measurement_theta_min      2.21
_cell_volume                     5372.5(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0722
_diffrn_reflns_av_sigmaI/netI    0.0742
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            31686
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.60
_exptl_absorpt_coefficient_mu    0.125
_exptl_absorpt_correction_T_max  0.9950
_exptl_absorpt_correction_T_min  0.9659
_exptl_absorpt_correction_type   'Sadabs, (Sheldrick 2001)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.407
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rod
_exptl_crystal_F_000             2373
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.220
_refine_diff_density_min         -0.202
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.122
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     762
_refine_ls_number_reflns         9464
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.122
_refine_ls_R_factor_all          0.1212
_refine_ls_R_factor_gt           0.0818
_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^)+(0.0658P)^2^+0.9184P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1553
_refine_ls_wR_factor_ref         0.1703
_reflns_number_gt                6457
_reflns_number_total             9464
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra11706a2.cif
_cod_data_source_block           8429
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 2827 2014-09-09 07:05:25Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'Not Measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        5372.6(6)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7218538