# Electronic Supplementary Material (ESI) for RSC Advances.
# This journal is © The Royal Society of Chemistry 2015

####################################################################### 
# 
# 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. 
# 
#######################################################################

data_rrk01_0m
_database_code_depnum_ccdc_archive 'CCDC 1033617'
_audit_update_record             
;
2015-02-04 deposited with the CCDC.
2015-05-18 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C26 H22 N4 Ni S2'
_chemical_formula_sum            'C26 H22 N4 Ni S2'
_chemical_formula_weight         513.29

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
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'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ni Ni 0.3393 1.1124 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 21/c'

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

_cell_length_a                   6.5753(4)
_cell_length_b                   9.3025(6)
_cell_length_c                   19.5943(12)
_cell_angle_alpha                90.00
_cell_angle_beta                 96.416(3)
_cell_angle_gamma                90.00
_cell_volume                     1191.01(13)
_cell_formula_units_Z            2
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    36
_cell_measurement_theta_min      22
_cell_measurement_theta_max      26

_exptl_crystal_description       needle
_exptl_crystal_colour            red
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.18
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             532
_exptl_absorpt_coefficient_mu    1.012
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.775
_exptl_absorpt_correction_T_max  0.833
_exptl_absorpt_process_details   'SADABS;Sheldrick, 1996'

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      296(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  ?
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            12482
_diffrn_reflns_av_R_equivalents  0.0194
_diffrn_reflns_av_sigmaI/netI    0.0175
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_theta_min         2.09
_diffrn_reflns_theta_max         29.96
_reflns_number_total             3447
_reflns_number_gt                2932
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_molecular_graphics    ?
_computing_publication_material  ?

_refine_special_details          
; 
 Refinement of F² against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F², conventional R-factors R are based 
 on F, with F set to zero for negative F². The threshold expression of 
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F² are statistically about twice as large as those based on F, and R- 
 factors based on ALL data will be even larger. 
;

_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[σ²(Fo²)+(0.0650P)²+0.2018P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         3439
_refine_ls_number_parameters     152
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0430
_refine_ls_R_factor_gt           0.0322
_refine_ls_wR_factor_ref         0.1112
_refine_ls_wR_factor_gt          0.0970
_refine_ls_goodness_of_fit_ref   1.104
_refine_ls_restrained_S_all      1.104
_refine_ls_shift/su_max          0.012
_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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
Ni1 Ni 0.5000 1.0000 0.0000 0.03603(11) Uani 1 2 d S . .
S1 S 0.51275(7) 0.81807(5) 0.07053(3) 0.05813(16) Uani 1 1 d . . .
N1 N 0.23590(19) 0.92810(14) -0.03968(6) 0.0371(3) Uani 1 1 d . . .
N2 N 0.2266(3) 0.61103(17) 0.06177(8) 0.0556(4) Uani 1 1 d . . .
C1 C 0.1132(3) 0.99816(18) -0.08826(10) 0.0471(4) Uani 1 1 d . . .
H1 H 0.1539(2) 1.0884(1) -0.1020(3) 0.057(2) Uiso 1 1 calc R . .
C2 C -0.0691(3) 0.9438(2) -0.11877(9) 0.0495(4) Uani 1 1 d . . .
H2 H -0.1479(2) 0.9962(3) -0.1524(2) 0.059(2) Uiso 1 1 calc R . .
C3 C -0.1334(3) 0.8115(2) -0.09905(10) 0.0524(4) Uani 1 1 d . . .
H3 H -0.2554(2) 0.7720(3) -0.1193(2) 0.063(1) Uiso 1 1 calc R . .
C4 C -0.0129(3) 0.7384(2) -0.04842(9) 0.0505(4) Uani 1 1 d . . .
H4 H -0.0533(2) 0.6487(1) -0.0339(3) 0.061(2) Uiso 1 1 calc R . .
C5 C 0.1684(2) 0.79898(17) -0.01929(7) 0.0374(3) Uani 1 1 d . . .
C6 C 0.2938(2) 0.72730(17) 0.03858(8) 0.0390(3) Uani 1 1 d . . .
C7 C 0.3332(3) 0.5401(2) 0.11924(9) 0.0491(4) Uani 1 1 d . . .
C8 C 0.2428(3) 0.5378(2) 0.18016(11) 0.0553(5) Uani 1 1 d . . .
C9 C 0.3371(4) 0.4567(3) 0.23458(11) 0.0666(6) Uani 1 1 d . . .
H9 H 0.2802(2) 0.4552(4) 0.2760(2) 0.080(1) Uiso 1 1 calc R . .
C10 C 0.5129(4) 0.3786(3) 0.22857(11) 0.0666(6) Uani 1 1 d . . .
H10 H 0.5711(2) 0.3233(2) 0.2652(1) 0.080(2) Uiso 1 1 calc R . .
C11 C 0.6009(3) 0.3829(2) 0.16867(12) 0.0639(5) Uani 1 1 d . . .
H11 H 0.7201(2) 0.3313(1) 0.1647(4) 0.077(1) Uiso 1 1 calc R . .
C12 C 0.5124(3) 0.4642(3) 0.11373(11) 0.0588(5) Uani 1 1 d . . .
H12 H 0.5735(3) 0.4679(2) 0.0732(4) 0.071(2) Uiso 1 1 calc R . .
C13 C 0.0506(4) 0.6223(3) 0.18726(15) 0.0814(7) Uani 1 1 d . . .
H13A H 0.0816(2) 0.7231(2) 0.1883(2) 0.122(1) Uiso 1 1 calc R . .
H13B H -0.0028(2) 0.5954(1) 0.2291(2) 0.122(1) Uiso 1 1 calc R . .
H13C H -0.0494(3) 0.6020(1) 0.1489(3) 0.122(1) Uiso 1 1 calc R . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
Ni1 0.03858(16) 0.03373(17) 0.03450(16) 0.00577(10) -0.00155(11) -0.01085(9)
S1 0.0568(3) 0.0524(3) 0.0591(3) 0.0249(2) -0.0207(2) -0.0269(2)
N1 0.0403(6) 0.0362(6) 0.0339(6) 0.0043(5) 0.0006(5) -0.0080(5)
N2 0.0618(9) 0.0473(8) 0.0530(9) 0.0180(7) -0.0146(7) -0.0244(7)
C1 0.0452(9) 0.0438(9) 0.0499(10) 0.0127(7) -0.0054(7) -0.0111(6)
C2 0.0459(9) 0.0508(10) 0.0487(9) 0.0090(8) -0.0090(7) -0.0077(7)
C3 0.0479(9) 0.0523(10) 0.0530(10) 0.0031(8) -0.0117(7) -0.0155(8)
C4 0.0532(10) 0.0425(9) 0.0523(10) 0.0065(7) -0.0092(7) -0.0183(7)
C5 0.0438(8) 0.0347(7) 0.0329(7) 0.0017(6) 0.0007(6) -0.0093(6)
C6 0.0446(8) 0.0364(7) 0.0346(7) 0.0028(6) -0.0015(6) -0.0123(6)
C7 0.0553(10) 0.0392(8) 0.0487(9) 0.0121(7) -0.0125(7) -0.0224(7)
C8 0.0599(11) 0.0507(10) 0.0528(10) 0.0078(9) -0.0056(8) -0.0132(9)
C9 0.0807(15) 0.0729(13) 0.0445(10) 0.0129(10) -0.0006(10) -0.0076(12)
C10 0.0772(14) 0.0653(12) 0.0516(11) 0.0162(10) -0.0169(10) -0.0062(11)
C11 0.0613(11) 0.0606(12) 0.0660(13) 0.0102(10) -0.0101(9) -0.0044(9)
C12 0.0618(12) 0.0588(11) 0.0539(11) 0.0109(9) -0.0016(9) -0.0144(10)
C13 0.0738(15) 0.0871(18) 0.0826(17) 0.0146(14) 0.0058(12) 0.0038(13)

_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
Ni1 N1 1.9405(12) . ?
Ni1 N1 1.9405(12) 3_675 ?
Ni1 S1 2.1807(4) 3_675 ?
Ni1 S1 2.1807(4) . ?
S1 C6 1.7250(15) . ?
N1 C1 1.345(2) . ?
N1 C5 1.3560(19) . ?
N2 C6 1.272(2) . ?
N2 C7 1.421(2) . ?
C1 C2 1.375(2) . ?
C1 H1 0.9300 . ?
C2 C3 1.371(3) . ?
C2 H2 0.9300 . ?
C3 C4 1.378(2) . ?
C3 H3 0.9300 . ?
C4 C5 1.383(2) . ?
C4 H4 0.9300 . ?
C5 C6 1.484(2) . ?
C7 C12 1.388(3) . ?
C7 C8 1.392(3) . ?
C8 C9 1.394(3) . ?
C8 C13 1.508(4) . ?
C9 C10 1.381(4) . ?
C9 H9 0.9300 . ?
C10 C11 1.366(3) . ?
C10 H10 0.9300 . ?
C11 C12 1.389(3) . ?
C11 H11 0.9300 . ?
C12 H12 0.9300 . ?
C13 H13A 0.9600 . ?
C13 H13B 0.9600 . ?
C13 H13C 0.9600 . ?

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
N1 Ni1 N1 180.0 . 3_675 ?
N1 Ni1 S1 92.54(4) . 3_675 ?
N1 Ni1 S1 87.46(4) 3_675 3_675 ?
N1 Ni1 S1 87.46(4) . . ?
N1 Ni1 S1 92.54(4) 3_675 . ?
S1 Ni1 S1 180.0 3_675 . ?
C6 S1 Ni1 100.28(5) . . ?
C1 N1 C5 116.58(13) . . ?
C1 N1 Ni1 123.75(10) . . ?
C5 N1 Ni1 119.66(10) . . ?
C6 N2 C7 121.19(14) . . ?
N1 C1 C2 123.66(15) . . ?
N1 C1 H1 118.2 . . ?
C2 C1 H1 118.2 . . ?
C3 C2 C1 119.29(16) . . ?
C3 C2 H2 120.4 . . ?
C1 C2 H2 120.4 . . ?
C2 C3 C4 118.34(15) . . ?
C2 C3 H3 120.8 . . ?
C4 C3 H3 120.8 . . ?
C3 C4 C5 119.76(16) . . ?
C3 C4 H4 120.1 . . ?
C5 C4 H4 120.1 . . ?
N1 C5 C4 122.32(15) . . ?
N1 C5 C6 116.82(13) . . ?
C4 C5 C6 120.81(14) . . ?
N2 C6 C5 118.01(14) . . ?
N2 C6 S1 126.59(13) . . ?
C5 C6 S1 115.30(11) . . ?
C12 C7 C8 120.42(18) . . ?
C12 C7 N2 121.51(19) . . ?
C8 C7 N2 117.82(19) . . ?
C7 C8 C9 118.0(2) . . ?
C7 C8 C13 120.9(2) . . ?
C9 C8 C13 121.1(2) . . ?
C10 C9 C8 121.6(2) . . ?
C10 C9 H9 119.2 . . ?
C8 C9 H9 119.2 . . ?
C11 C10 C9 119.8(2) . . ?
C11 C10 H10 120.1 . . ?
C9 C10 H10 120.1 . . ?
C10 C11 C12 120.1(2) . . ?
C10 C11 H11 120.0 . . ?
C12 C11 H11 120.0 . . ?
C7 C12 C11 120.1(2) . . ?
C7 C12 H12 119.9 . . ?
C11 C12 H12 119.9 . . ?
C8 C13 H13A 109.5 . . ?
C8 C13 H13B 109.5 . . ?
H13A C13 H13B 109.5 . . ?
C8 C13 H13C 109.5 . . ?
H13A C13 H13C 109.5 . . ?
H13B C13 H13C 109.5 . . ?

_diffrn_measured_fraction_theta_max 0.997
_diffrn_reflns_theta_full        29.96
_diffrn_measured_fraction_theta_full 0.997
_refine_diff_density_max         0.479
_refine_diff_density_min         -0.456
_refine_diff_density_rms         0.159
