Anion-Induced Self-Assembly of Luminescent and Magnetic Homoleptic Cyclic Tetranuclear Ln4(Salen)4 and Ln4(Salen)2 Complexes (Ln = Nd, Yb, Er, or Gd)
Weixu Feng; Yao Zhang; Zhao Zhang; Xingqiang Lü; Han Liu; Guoxiang Shi; Dan Zou; Jirong Song; Daidi Fan; Wai-Kwok Wong; Richard A. Jones; Inorganic Chemistry 51 (2012) 11377–11386; doi:10.1021/ic300918c

data_4330796
_publ_contact_author_address
;
Shaanxi Key Engineering Center of Bio-materials
Shaanxi Key Laboratory of Physico-inorganic Chemistry
Northwest University
Xi'an 
710069
China
;
_publ_contact_author_email       lvxq@nwu.edu.cn
_publ_contact_author_name        'Xingqiang Lu'
_publ_section_title
;
 Anion-Induced Self-Assembly of Luminescent and Magnetic Homoleptic Cyclic
 Tetranuclear Ln4(Salen)4 and Ln4(Salen)2 Complexes (Ln = Nd, Yb, Er, or
 Gd)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              11377
_journal_page_last               11386
_journal_paper_doi               10.1021/ic300918c
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'C56 H68 Er4 N4 O22'
_chemical_formula_weight         1818.18
_chemical_name_systematic
; 
 ? 
;
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_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                104.693(5)
_cell_angle_beta                 91.462(5)
_cell_angle_gamma                95.205(5)
_cell_formula_units_Z            1
_cell_length_a                   11.824(3)
_cell_length_b                   12.126(3)
_cell_length_c                   12.717(3)
_cell_measurement_reflns_used    1425
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.43
_cell_measurement_theta_min      2.46
_cell_volume                     1754.2(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device_type  'Bruker Smart CCD'
_diffrn_measurement_method       '\f and \w 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  0.0519
_diffrn_reflns_av_sigmaI/netI    0.1306
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -14
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_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       11
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_diffrn_reflns_theta_full        26.24
_diffrn_reflns_theta_max         26.24
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    4.804
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.721
_exptl_crystal_description       block
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.21
_refine_diff_density_max         3.764
_refine_diff_density_min         -3.672
_refine_diff_density_rms         0.510
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     388
_refine_ls_number_reflns         6784
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.1414
_refine_ls_R_factor_gt           0.0832
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1474P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2157
_refine_ls_wR_factor_ref         0.2638
_reflns_number_gt                3949
_reflns_number_total             6784
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic300918c_si_002_4.cif
_cod_data_source_block           7
_cod_original_cell_volume        1754.3(8)
_cod_database_code               4330796