Reversible transformation between chiral and achiral Dy6Mo4 clusters through a symmetric operation
Yong Zheng; Yin-Yin Pan; Yan-Ping Ren; La-Sheng Long; Rong-Bin Huang; Lan-Sun Zheng; Chem.Commun. 50 (2014) 14728–; doi:10.1039/C4cc07047J

data_7115994
_publ_section_title
;
 Reversible transformation between chiral and achiral Dy6Mo4 clusters
 through a symmetric operation
;
_journal_name_full               Chem.Commun.
_journal_page_first              14728
_journal_paper_doi               10.1039/C4cc07047J
_journal_volume                  50
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C56 H64 Dy6 Mo4 N4 O40, 2(C6 H15 N)'
_chemical_formula_sum            'C68 H132 Dy6 Mo4 N6 O58'
_chemical_formula_weight         3320.56
_chemical_name_systematic
;
 ? 
;
_space_group_crystal_system      trigonal
_space_group_IT_number           154
_space_group_name_Hall           'P 32 2"'
_space_group_name_H-M_alt        'P 32 2 1'
_symmetry_space_group_name_Hall  'P 32 2"'
_symmetry_space_group_name_H-M   'P 32 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_date             2013-04-18
_audit_creation_method
;
  Olex2 1.2
  (compiled Apr  9 2013 14:06:00, GUI svn.r4458)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   22.0866(14)
_cell_length_b                   22.0866(14)
_cell_length_c                   19.183(3)
_cell_measurement_temperature    123(2)
_cell_volume                     8104.1(15)
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
XL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
XS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_diffrn_ambient_temperature      123.15
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_unetI/netI     0.0484
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            10621
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.50
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    4.637
_exptl_absorpt_correction_T_max  0.1971
_exptl_absorpt_correction_T_min  0.1081
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'clear yellowish yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   yellowish
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    2.041
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4830
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.3
_refine_diff_density_max         2.567
_refine_diff_density_min         -0.866
_refine_diff_density_rms         0.195
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.000(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.137
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     561
_refine_ls_number_reflns         10621
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.137
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0490
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0639P)^2^+4.0483P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1118
_refine_ls_wR_factor_ref         0.1129
_reflns_number_gt                10194
_reflns_number_total             10621
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc07047j2.cif
_cod_data_source_block           complex_IIb
_cod_original_cell_volume        8103.9(13)
_cod_database_code               7115994
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained planarity
 C11, C12, C13, C14, C15, C16
 with sigma of 0.1
3. Uiso/Uaniso restraints and constraints
Uanis(C28) \\sim Ueq: with sigma of 0.1 and sigma for terminal atoms of 0.2
Uanis(C28) \\sim Ueq: with sigma of 0.1 and sigma for terminal atoms of 0.05
4.a Ternary CH refined with riding coordinates:
 C9(H9), C19(H19), N3(H3a)
4.b Secondary CH2 refined with riding coordinates:
 C8(H8a,H8b), C10(H10a,H10b), C18(H18a,H18b), C20(H20a,H20b), C33(H33a,H33b),
 C29(H29a,H29b)
4.c Me refined with riding coordinates:
 C22(H22a,H22b,H22c), C24(H24a,H24b,H24c), C26(H26a,H26b,H26c), C28(H28a,H28b,
 H28c), C34(H34a,H34b,H34c), C32(H32a,H32b,H32c), C30(H30a,H30b,H30c)
4.d Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C7(H7), C12(H12), C13(H13), C14(H14),
 C15(H15), C17(H17), C31(H31)
;