# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2017

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
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data_cnt2eu
_database_code_depnum_ccdc_archive 'CCDC 1544973'
_audit_update_record             
;
2017-04-20 deposited with the CCDC.
2017-05-11 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2014/7
_chemical_name_systematic        
;
Bis(cyclononatetraenyl)europium(II)
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C18 H18 Eu'
_chemical_formula_sum            'C18 H18 Eu'
_chemical_formula_weight         386.28

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
Eu Eu -0.1578 3.6682 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 21/n'
_space_group_name_Hall           '-P 2yn'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x-1/2, -y-1/2, z-1/2'

_cell_length_a                   7.2625(2)
_cell_length_b                   9.0561(4)
_cell_length_c                   11.2528(7)
_cell_angle_alpha                90
_cell_angle_beta                 99.710(3)
_cell_angle_gamma                90
_cell_volume                     729.49(6)
_cell_formula_units_Z            2
_cell_measurement_temperature    103(2)
_cell_measurement_reflns_used    9062
_cell_measurement_theta_min      2.904
_cell_measurement_theta_max      27.750

_exptl_crystal_description       prism
_exptl_crystal_colour            orange
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_density_diffrn    1.759
_exptl_crystal_F_000             378
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.050
_exptl_absorpt_coefficient_mu    4.282
_shelx_estimated_absorpt_T_min   0.481
_shelx_estimated_absorpt_T_max   0.814
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.46967
_exptl_absorpt_correction_T_max  0.50609
_exptl_absorpt_process_details   
;
(MULABS; Blessing, 1995)
;
_diffrn_ambient_temperature      103(2)
_diffrn_radiation_wavelength     0.71075
_diffrn_radiation_type           MoK\a
_diffrn_source                   'fine-focus sealed tube'
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       ω
_diffrn_detector_area_resol_mean 28.5714
_diffrn_reflns_number            9040
_diffrn_reflns_av_unetI/netI     0.0180
_diffrn_reflns_av_R_equivalents  0.0336
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_theta_min         2.904
_diffrn_reflns_theta_max         27.750
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measured_fraction_theta_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_point_group_measured_fraction_full 0.998
_reflns_number_total             1712
_reflns_number_gt                1395
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_max     .
_reflns_Friedel_fraction_full    .

_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;

_computing_data_collection       
;
CrystalClear (Rigaku, 1999)
;
_computing_cell_refinement       
;
HKL2000 (Otwinowski & Minor, 1997)
;
_computing_data_reduction        
;
HKL2000 (Otwinowski & Minor, 1997)
;
_computing_structure_solution    
;
SHELXT (Sheldrick, 2015a)
;
_computing_structure_refinement  
;
SHELXL2014 (Sheldrick, 2015b)
;
_computing_molecular_graphics    
;
Yadokari-XG (Wakita, 2001; Kabuto et al.,  2009),
Mercury (Macrae et al.,  2008) and
CrystalMaker (Palmer, 2007)
;
_computing_publication_material  
;
Yadokari-XG (Wakita, 2001; Kabuto et al.,  2009)
;
_refine_special_details          ?
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0036P)²+1.0194P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       .
_refine_ls_number_reflns         1712
_refine_ls_number_parameters     170
_refine_ls_number_restraints     108
_refine_ls_R_factor_all          0.0246
_refine_ls_R_factor_gt           0.0186
_refine_ls_wR_factor_ref         0.0397
_refine_ls_wR_factor_gt          0.0374
_refine_ls_goodness_of_fit_ref   1.136
_refine_ls_restrained_S_all      1.121
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
Eu1 Eu 0.0000 0.0000 0.0000 0.02362(6) Uani 1 2 d S . P . .
C1 C 0.3111(15) -0.0265(10) 0.1927(9) 0.041(2) Uani 0.578(11) 1 d . U P A 1
H1 H 0.4062 0.0404 0.2268 0.050 Uiso 0.578(11) 1 calc R U P A 1
C2 C 0.3695(13) -0.1056(12) 0.0989(9) 0.0315(19) Uani 0.578(11) 1 d . U P A 1
H2 H 0.4943 -0.0801 0.0926 0.038 Uiso 0.578(11) 1 calc R U P A 1
C3 C 0.3002(12) -0.2111(11) 0.0112(10) 0.0262(18) Uani 0.578(11) 1 d . U P A 1
H3 H 0.3910 -0.2323 -0.0381 0.031 Uiso 0.578(11) 1 calc R U P A 1
C4 C 0.1397(14) -0.2941(10) -0.0257(8) 0.0269(17) Uani 0.578(11) 1 d . U P A 1
H4 H 0.1539 -0.3530 -0.0935 0.032 Uiso 0.578(11) 1 calc R U P A 1
C5 C -0.0345(13) -0.3176(7) 0.0055(7) 0.0270(15) Uani 0.578(11) 1 d . U P A 1
H5 H -0.1013 -0.3873 -0.0484 0.032 Uiso 0.578(11) 1 calc R U P A 1
C6 C -0.1432(10) -0.2744(9) 0.0877(9) 0.0282(15) Uani 0.578(11) 1 d . U P A 1
H6 H -0.2591 -0.3255 0.0732 0.034 Uiso 0.578(11) 1 calc R U P A 1
C7 C -0.1384(11) -0.1794(11) 0.1861(8) 0.0297(16) Uani 0.578(11) 1 d . U P A 1
H7 H -0.2499 -0.1880 0.2193 0.036 Uiso 0.578(11) 1 calc R U P A 1
C8 C -0.0180(16) -0.0753(11) 0.2504(6) 0.0376(19) Uani 0.578(11) 1 d . U P A 1
H8 H -0.0747 -0.0330 0.3125 0.045 Uiso 0.578(11) 1 calc R U P A 1
C9 C 0.1580(18) -0.0143(9) 0.2521(6) 0.0409(19) Uani 0.578(11) 1 d . U P A 1
H9 H 0.1816 0.0591 0.3132 0.049 Uiso 0.578(11) 1 calc R U P A 1
C10 C 0.3555(13) -0.0351(12) 0.1596(11) 0.024(2) Uani 0.422(11) 1 d . U P A 2
H10 H 0.4729 0.0133 0.1772 0.029 Uiso 0.422(11) 1 calc R U P A 2
C11 C 0.3547(19) -0.1424(17) 0.0641(13) 0.033(3) Uani 0.422(11) 1 d . U P A 2
H11 H 0.4748 -0.1433 0.0412 0.039 Uiso 0.422(11) 1 calc R U P A 2
C12 C 0.244(2) -0.2428(16) -0.0050(12) 0.034(3) Uani 0.422(11) 1 d . U P A 2
H12 H 0.3098 -0.2841 -0.0634 0.040 Uiso 0.422(11) 1 calc R U P A 2
C13 C 0.071(2) -0.3020(14) -0.0166(12) 0.039(3) Uani 0.422(11) 1 d . U P A 2
H13 H 0.0491 -0.3671 -0.0837 0.047 Uiso 0.422(11) 1 calc R U P A 2
C14 C -0.082(2) -0.2959(13) 0.0400(13) 0.040(3) Uani 0.422(11) 1 d . U P A 2
H14 H -0.1731 -0.3651 0.0042 0.048 Uiso 0.422(11) 1 calc R U P A 2
C15 C -0.1464(12) -0.2229(14) 0.1310(13) 0.032(2) Uani 0.422(11) 1 d . U P A 2
H15 H -0.2654 -0.2608 0.1396 0.038 Uiso 0.422(11) 1 calc R U P A 2
C16 C -0.0949(15) -0.1098(16) 0.2165(11) 0.031(2) Uani 0.422(11) 1 d . U P A 2
H16 H -0.1936 -0.0926 0.2605 0.037 Uiso 0.422(11) 1 calc R U P A 2
C17 C 0.0536(18) -0.0152(14) 0.2574(6) 0.0274(19) Uani 0.422(11) 1 d . U P A 2
H17 H 0.0246 0.0453 0.3207 0.033 Uiso 0.422(11) 1 calc R U P A 2
C18 C 0.2318(15) 0.0183(12) 0.2341(8) 0.030(2) Uani 0.422(11) 1 d . U P A 2
H18 H 0.2846 0.0995 0.2815 0.036 Uiso 0.422(11) 1 calc R U P A 2


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
Eu1 C13 2.796(13) 3 ?
Eu1 C13 2.796(13) . ?
Eu1 C14 2.798(11) . ?
Eu1 C14 2.798(11) 3 ?
Eu1 C15 2.812(9) 3 ?
Eu1 C15 2.812(9) . ?
Eu1 C16 2.823(8) 3 ?
Eu1 C16 2.823(8) . ?
Eu1 C12 2.832(13) 3 ?
Eu1 C12 2.832(13) . ?
Eu1 C17 2.860(7) 3 ?
Eu1 C17 2.860(7) . ?
C1 C9 1.395(12) . ?
C1 C2 1.399(11) . ?
C1 H1 0.9500 . ?
C2 C3 1.405(10) . ?
C2 H2 0.9500 . ?
C3 C4 1.390(9) . ?
C3 H3 0.9500 . ?
C4 C5 1.385(8) . ?
C4 H4 0.9500 . ?
C5 C6 1.371(8) . ?
C5 H5 0.9500 . ?
C6 C7 1.398(9) . ?
C6 H6 0.9500 . ?
C7 C8 1.401(11) . ?
C7 H7 0.9500 . ?
C8 C9 1.390(12) . ?
C8 H8 0.9500 . ?
C9 H9 0.9500 . ?
C10 C18 1.414(11) . ?
C10 C11 1.448(13) . ?
C10 H10 0.9500 . ?
C11 C12 1.365(14) . ?
C11 H11 0.9500 . ?
C12 C13 1.353(15) . ?
C12 H12 0.9500 . ?
C13 C14 1.374(17) . ?
C13 H13 0.9500 . ?
C14 C15 1.365(15) . ?
C14 H14 0.9500 . ?
C15 C16 1.413(14) . ?
C15 H15 0.9500 . ?
C16 C17 1.394(13) . ?
C16 H16 0.9500 . ?
C17 C18 1.396(11) . ?
C17 H17 0.9500 . ?
C18 H18 0.9500 . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
C13 Eu1 C13 180.0 3 . ?
C13 Eu1 C14 151.6(3) 3 . ?
C13 Eu1 C14 28.4(3) . . ?
C13 Eu1 C14 28.4(3) 3 3 ?
C13 Eu1 C14 151.6(3) . 3 ?
C14 Eu1 C14 180.0 . 3 ?
C13 Eu1 C15 54.8(4) 3 3 ?
C13 Eu1 C15 125.2(4) . 3 ?
C14 Eu1 C15 151.8(3) . 3 ?
C14 Eu1 C15 28.2(3) 3 3 ?
C13 Eu1 C15 125.2(4) 3 . ?
C13 Eu1 C15 54.8(4) . . ?
C14 Eu1 C15 28.2(3) . . ?
C14 Eu1 C15 151.8(3) 3 . ?
C15 Eu1 C15 180.0(4) 3 . ?
C13 Eu1 C16 77.8(4) 3 3 ?
C13 Eu1 C16 102.2(4) . 3 ?
C14 Eu1 C16 124.5(4) . 3 ?
C14 Eu1 C16 55.5(4) 3 3 ?
C15 Eu1 C16 29.0(3) 3 3 ?
C15 Eu1 C16 151.0(3) . 3 ?
C13 Eu1 C16 102.2(4) 3 . ?
C13 Eu1 C16 77.8(4) . . ?
C14 Eu1 C16 55.5(4) . . ?
C14 Eu1 C16 124.5(4) 3 . ?
C15 Eu1 C16 151.0(3) 3 . ?
C15 Eu1 C16 29.0(3) . . ?
C16 Eu1 C16 180.0 3 . ?
C13 Eu1 C12 27.8(3) 3 3 ?
C13 Eu1 C12 152.2(3) . 3 ?
C14 Eu1 C12 126.1(4) . 3 ?
C14 Eu1 C12 53.9(4) 3 3 ?
C15 Eu1 C12 75.3(4) 3 3 ?
C15 Eu1 C12 104.7(4) . 3 ?
C16 Eu1 C12 89.4(3) 3 3 ?
C16 Eu1 C12 90.6(3) . 3 ?
C13 Eu1 C12 152.2(3) 3 . ?
C13 Eu1 C12 27.8(3) . . ?
C14 Eu1 C12 53.9(4) . . ?
C14 Eu1 C12 126.1(4) 3 . ?
C15 Eu1 C12 104.7(4) 3 . ?
C15 Eu1 C12 75.3(4) . . ?
C16 Eu1 C12 90.6(3) 3 . ?
C16 Eu1 C12 89.4(3) . . ?
C12 Eu1 C12 180.0 3 . ?
C13 Eu1 C17 91.5(3) 3 3 ?
C13 Eu1 C17 88.5(3) . 3 ?
C14 Eu1 C17 102.3(3) . 3 ?
C14 Eu1 C17 77.7(3) 3 3 ?
C15 Eu1 C17 55.5(3) 3 3 ?
C15 Eu1 C17 124.5(3) . 3 ?
C16 Eu1 C17 28.4(3) 3 3 ?
C16 Eu1 C17 151.6(3) . 3 ?
C12 Eu1 C17 90.2(3) 3 3 ?
C12 Eu1 C17 89.8(3) . 3 ?
C13 Eu1 C17 88.5(3) 3 . ?
C13 Eu1 C17 91.5(3) . . ?
C14 Eu1 C17 77.7(3) . . ?
C14 Eu1 C17 102.3(3) 3 . ?
C15 Eu1 C17 124.5(3) 3 . ?
C15 Eu1 C17 55.5(3) . . ?
C16 Eu1 C17 151.6(3) 3 . ?
C16 Eu1 C17 28.4(3) . . ?
C12 Eu1 C17 89.8(3) 3 . ?
C12 Eu1 C17 90.2(3) . . ?
C17 Eu1 C17 180.00(4) 3 . ?
C9 C1 C2 140.3(8) . . ?
C9 C1 Eu1 76.5(4) . . ?
C2 C1 Eu1 76.9(5) . . ?
C9 C1 H1 109.8 . . ?
C2 C1 H1 109.8 . . ?
Eu1 C1 H1 132.8 . . ?
C1 C2 C3 139.5(8) . . ?
C1 C2 Eu1 75.0(5) . . ?
C3 C2 Eu1 75.8(5) . . ?
C1 C2 H2 110.3 . . ?
C3 C2 H2 110.3 . . ?
Eu1 C2 H2 136.7 . . ?
C4 C3 C2 139.5(8) . . ?
C4 C3 Eu1 75.9(4) . . ?
C2 C3 Eu1 76.0(5) . . ?
C4 C3 H3 110.2 . . ?
C2 C3 H3 110.2 . . ?
Eu1 C3 H3 134.6 . . ?
C5 C4 C3 139.7(8) . . ?
C5 C4 Eu1 76.4(4) . . ?
C3 C4 Eu1 76.2(5) . . ?
C5 C4 H4 110.2 . . ?
C3 C4 H4 110.2 . . ?
Eu1 C4 H4 133.4 . . ?
C6 C5 C4 141.5(8) . . ?
C6 C5 Eu1 78.0(4) . . ?
C4 C5 Eu1 75.9(4) . . ?
C6 C5 H5 109.3 . . ?
C4 C5 H5 109.3 . . ?
Eu1 C5 H5 133.2 . . ?
C5 C6 C7 140.3(7) . . ?
C5 C6 Eu1 74.7(4) . . ?
C7 C6 Eu1 77.4(4) . . ?
C5 C6 H6 109.8 . . ?
C7 C6 H6 109.8 . . ?
Eu1 C6 H6 135.2 . . ?
C6 C7 C8 138.8(6) . . ?
C6 C7 Eu1 75.1(4) . . ?
C8 C7 Eu1 74.8(4) . . ?
C6 C7 H7 110.6 . . ?
C8 C7 H7 110.6 . . ?
Eu1 C7 H7 137.5 . . ?
C9 C8 C7 140.1(6) . . ?
C9 C8 Eu1 74.3(4) . . ?
C7 C8 Eu1 77.6(4) . . ?
C9 C8 H8 109.9 . . ?
C7 C8 H8 109.9 . . ?
Eu1 C8 H8 135.3 . . ?
C8 C9 C1 140.1(7) . . ?
C8 C9 Eu1 77.9(4) . . ?
C1 C9 Eu1 75.4(4) . . ?
C8 C9 H9 110.0 . . ?
C1 C9 H9 110.0 . . ?
Eu1 C9 H9 132.4 . . ?
C18 C10 C11 138.3(10) . . ?
C18 C10 Eu1 75.0(5) . . ?
C11 C10 Eu1 73.9(6) . . ?
C18 C10 H10 110.8 . . ?
C11 C10 H10 110.8 . . ?
Eu1 C10 H10 138.8 . . ?
C12 C11 C10 142.9(12) . . ?
C12 C11 Eu1 74.9(7) . . ?
C10 C11 Eu1 77.0(6) . . ?
C12 C11 H11 108.5 . . ?
C10 C11 H11 108.5 . . ?
Eu1 C11 H11 139.8 . . ?
C13 C12 C11 140.0(12) . . ?
C13 C12 Eu1 74.6(7) . . ?
C11 C12 Eu1 77.4(7) . . ?
C13 C12 H12 110.0 . . ?
C11 C12 H12 110.0 . . ?
Eu1 C12 H12 135.0 . . ?
C12 C13 C14 138.7(11) . . ?
C12 C13 Eu1 77.6(7) . . ?
C14 C13 Eu1 75.9(7) . . ?
C12 C13 H13 110.6 . . ?
C14 C13 H13 110.6 . . ?
Eu1 C13 H13 130.7 . . ?
C15 C14 C13 140.7(10) . . ?
C15 C14 Eu1 76.5(6) . . ?
C13 C14 Eu1 75.7(7) . . ?
C15 C14 H14 109.7 . . ?
C13 C14 H14 109.7 . . ?
Eu1 C14 H14 135.7 . . ?
C14 C15 C16 141.1(9) . . ?
C14 C15 Eu1 75.4(6) . . ?
C16 C15 Eu1 75.9(5) . . ?
C14 C15 H15 109.5 . . ?
C16 C15 H15 109.5 . . ?
Eu1 C15 H15 138.1 . . ?
C17 C16 C15 140.5(9) . . ?
C17 C16 Eu1 77.3(5) . . ?
C15 C16 Eu1 75.0(5) . . ?
C17 C16 H16 109.7 . . ?
C15 C16 H16 109.7 . . ?
Eu1 C16 H16 135.1 . . ?
C16 C17 C18 139.7(9) . . ?
C16 C17 Eu1 74.3(5) . . ?
C18 C17 Eu1 76.8(5) . . ?
C16 C17 H17 110.2 . . ?
C18 C17 H17 110.2 . . ?
Eu1 C17 H17 136.2 . . ?
C17 C18 C10 137.6(10) . . ?
C17 C18 Eu1 75.0(5) . . ?
C10 C18 Eu1 76.7(6) . . ?
C17 C18 H18 111.2 . . ?
C10 C18 H18 111.2 . . ?
Eu1 C18 H18 132.5 . . ?

loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
C9 C1 C2 C3 3.6(19) . . . . ?
Eu1 C1 C2 C3 -45.3(10) . . . . ?
C9 C1 C2 Eu1 48.9(10) . . . . ?
C1 C2 C3 C4 -2.2(18) . . . . ?
Eu1 C2 C3 C4 -47.2(10) . . . . ?
C1 C2 C3 Eu1 45.1(10) . . . . ?
C2 C3 C4 C5 -1.1(17) . . . . ?
Eu1 C3 C4 C5 -48.4(9) . . . . ?
C2 C3 C4 Eu1 47.3(10) . . . . ?
C3 C4 C5 C6 -0.3(17) . . . . ?
Eu1 C4 C5 C6 -48.7(9) . . . . ?
C3 C4 C5 Eu1 48.4(9) . . . . ?
C4 C5 C6 C7 1.2(16) . . . . ?
Eu1 C5 C6 C7 -46.9(9) . . . . ?
C4 C5 C6 Eu1 48.1(9) . . . . ?
C5 C6 C7 C8 1.8(15) . . . . ?
Eu1 C6 C7 C8 -44.4(8) . . . . ?
C5 C6 C7 Eu1 46.2(8) . . . . ?
C6 C7 C8 C9 -1.6(15) . . . . ?
Eu1 C7 C8 C9 -46.0(9) . . . . ?
C6 C7 C8 Eu1 44.5(8) . . . . ?
C7 C8 C9 C1 -2.1(17) . . . . ?
Eu1 C8 C9 C1 -49.0(9) . . . . ?
C7 C8 C9 Eu1 46.9(9) . . . . ?
C2 C1 C9 C8 0.7(18) . . . . ?
Eu1 C1 C9 C8 49.7(10) . . . . ?
C2 C1 C9 Eu1 -49.0(10) . . . . ?
C18 C10 C11 C12 2(3) . . . . ?
Eu1 C10 C11 C12 -41.5(17) . . . . ?
C18 C10 C11 Eu1 43.3(13) . . . . ?
C10 C11 C12 C13 -4(3) . . . . ?
Eu1 C11 C12 C13 -46.4(16) . . . . ?
C10 C11 C12 Eu1 42.0(17) . . . . ?
C11 C12 C13 C14 -4(3) . . . . ?
Eu1 C12 C13 C14 -51.0(15) . . . . ?
C11 C12 C13 Eu1 47.1(16) . . . . ?
C12 C13 C14 C15 5(3) . . . . ?
Eu1 C13 C14 C15 -46.2(14) . . . . ?
C12 C13 C14 Eu1 51.5(15) . . . . ?
C13 C14 C15 C16 2(2) . . . . ?
Eu1 C14 C15 C16 -43.7(13) . . . . ?
C13 C14 C15 Eu1 46.0(14) . . . . ?
C14 C15 C16 C17 -3(2) . . . . ?
Eu1 C15 C16 C17 -47.0(12) . . . . ?
C14 C15 C16 Eu1 43.6(13) . . . . ?
C15 C16 C17 C18 0(2) . . . . ?
Eu1 C16 C17 C18 -45.9(11) . . . . ?
C15 C16 C17 Eu1 46.4(12) . . . . ?
C16 C17 C18 C10 -4(2) . . . . ?
Eu1 C17 C18 C10 -49.7(11) . . . . ?
C16 C17 C18 Eu1 45.2(11) . . . . ?
C11 C10 C18 C17 6(2) . . . . ?
Eu1 C10 C18 C17 49.2(11) . . . . ?
C11 C10 C18 Eu1 -43.0(13) . . . . ?

_refine_diff_density_max         0.472
_refine_diff_density_min         -0.675
_refine_diff_density_rms         0.066




_chemical_properties_physical    
', Air-sensitive,Moisture-sensitive,Oxygen-sensitive'
_exptl_crystal_preparation       ', Luminescent'
