From MgBr via single-electron transfer (SET) to a paramagnetic Mg(II) compound and back to Mg(I): [MgBr(L^1^)^.^]2 and [K(thf)3]2[Mg2(L^1^)2], L^1^ == RN[double bond, length as m-dash]C(Me)C(Me)[double bond, length as m-dash]NR, R == 2,6-diisopropylphenyl
T. Kruczynski; P. Henke; T. Augenstein; N. Arleth; F. Breher; H. Schnockel; Chem.Commun. 50 (2014) 15677–; doi:10.1039/C4cc07680J

data_7116097
_publ_section_title
;
 From MgBr via single-electron transfer (SET) to a paramagnetic Mg(II)
 compound and back to Mg(I): [MgBr(L^1^)^.^]2 and [K(thf)3]2[Mg2(L^1^)2],
 L^1^ == RN[double bond, length as m-dash]C(Me)C(Me)[double bond, length
 as m-dash]NR, R == 2,6-diisopropylphenyl
;
_journal_name_full               Chem.Commun.
_journal_page_first              15677
_journal_paper_doi               10.1039/C4cc07680J
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C56 H80 Br2 Mg2 N4'
_chemical_formula_sum            'C56 H80 Br2 Mg2 N4'
_chemical_formula_weight         1017.68
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2014-09-19
_audit_creation_method
;
Olex2 1.2
(compiled 2014.08.28 svn.r2986 for OlexSys, GUI svn.r4874)
;
_cell_angle_alpha                90
_cell_angle_beta                 108.37(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   14.183(3)
_cell_length_b                   14.692(3)
_cell_length_c                   14.201(3)
_cell_measurement_reflns_used    9466
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.88
_cell_measurement_theta_min      2.05
_cell_volume                     2808.4(11)
_computing_cell_refinement       'STOE X-AREA, PLATON (A.L.Spek, 2005)'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED, PLATON (A.L.Spek, 2005)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0776
_diffrn_reflns_av_unetI/netI     0.0931
_diffrn_reflns_Laue_measured_fraction_full 0.959
_diffrn_reflns_Laue_measured_fraction_max 0.966
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            21086
_diffrn_reflns_point_group_measured_fraction_full 0.959
_diffrn_reflns_point_group_measured_fraction_max 0.966
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.278
_diffrn_reflns_theta_min         2.051
_diffrn_source
'sealed X-ray tube, 12 x 0.4 mm long-fine focus'
_exptl_absorpt_coefficient_mu    1.503
_exptl_absorpt_correction_T_max  0.9098
_exptl_absorpt_correction_T_min  0.8232
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details   'STOE X-RED & X-SHAPE'
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.203
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1076
_exptl_crystal_size_max          0.135
_exptl_crystal_size_mid          0.135
_exptl_crystal_size_min          0.099
_refine_diff_density_max         0.616
_refine_diff_density_min         -0.581
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.981
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     478
_refine_ls_number_reflns         6740
_refine_ls_number_restraints     360
_refine_ls_restrained_S_all      0.954
_refine_ls_R_factor_all          0.1320
_refine_ls_R_factor_gt           0.0622
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.0521P)^2^]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1265
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3743
_reflns_number_total             6740
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc07680j2.cif
_cod_data_source_block           y
_cod_original_cell_volume        2808.3(11)
_cod_database_code               7116097
_shelxl_version_number           2013-2
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(N2) \\sim Ueq, Uanis(N2A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C14) \\sim Ueq, Uanis(C14A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C13) \\sim Ueq, Uanis(C13A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(N1) \\sim Ueq, Uanis(N1A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C16) \\sim Ueq, Uanis(C16A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C15) \\sim Ueq, Uanis(C15A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C17) \\sim Ueq, Uanis(C17A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C18) \\sim Ueq, Uanis(C22A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C19) \\sim Ueq, Uanis(C21A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C20) \\sim Ueq, Uanis(C20A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C21) \\sim Ueq, Uanis(C19A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C22) \\sim Ueq, Uanis(C18A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C26) \\sim Ueq, Uanis(C23A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C27) \\sim Ueq, Uanis(C24A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C28) \\sim Ueq, Uanis(C25A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C23) \\sim Ueq, Uanis(C26A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C25) \\sim Ueq, Uanis(C28A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C24) \\sim Ueq, Uanis(C27A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C1) \\sim Ueq, Uanis(C1A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C2) \\sim Ueq, Uanis(C6A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C3) \\sim Ueq, Uanis(C5A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C4) \\sim Ueq, Uanis(C4A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C5) \\sim Ueq, Uanis(C3A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C6) \\sim Ueq, Uanis(C2A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C10) \\sim Ueq, Uanis(C7A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C12) \\sim Ueq, Uanis(C8A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C11) \\sim Ueq, Uanis(C9A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C7) \\sim Ueq, Uanis(C10A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C8) \\sim Ueq, Uanis(C11A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(C9) \\sim Ueq, Uanis(C12A) \\sim Ueq: with sigma of 0.1 and sigma for
terminal atoms of 0.2
Uanis(N1A) = Uanis(N1) = Uanis(N2) = Uanis(N2A)
Uanis(C18) = Uanis(C19) = Uanis(C20) = Uanis(C21) = Uanis(C22) = Uanis(C17)
Uanis(C17A) = Uanis(C14A) = Uanis(C13A)
Uanis(C9) = Uanis(C8)
3. Others
 Sof(C1A)=Sof(C6A)=Sof(C5A)=Sof(H5A)=Sof(C4A)=Sof(H4A)=Sof(C3A)=Sof(H3A)=
 Sof(C2A)=Sof(C7A)=Sof(H7A)=Sof(C9A)=Sof(H9AA)=Sof(H9AB)=Sof(H9AC)=Sof(C8A)=
 Sof(H8AA)=Sof(H8AB)=Sof(H8AC)=Sof(C10A)=Sof(H10A)=Sof(C11A)=Sof(H11D)=
 Sof(H11E)=Sof(H11F)=Sof(C12A)=Sof(H12D)=Sof(H12E)=Sof(H12F)=Sof(C13A)=
 Sof(C14A)=Sof(C15A)=Sof(H15D)=Sof(H15E)=Sof(H15F)=Sof(C16A)=Sof(H16D)=
 Sof(H16E)=Sof(H16F)=Sof(C17A)=Sof(C18A)=Sof(C19A)=Sof(H19A)=Sof(C20A)=
 Sof(H20A)=Sof(C21A)=Sof(H21A)=Sof(C22A)=Sof(C23A)=Sof(H23A)=Sof(C24A)=
 Sof(H24D)=Sof(H24E)=Sof(H24F)=Sof(C25A)=Sof(H25D)=Sof(H25E)=Sof(H25F)=
 Sof(C26A)=Sof(H26A)=Sof(C27A)=Sof(H27D)=Sof(H27E)=Sof(H27F)=Sof(C28A)=
 Sof(H28D)=Sof(H28E)=Sof(H28F)=Sof(N1A)=Sof(N2A)=1-FVAR(1)
 Sof(C1)=Sof(C6)=Sof(C5)=Sof(H5)=Sof(C4)=Sof(H4)=Sof(C3)=Sof(H3)=Sof(C2)=
 Sof(C7)=Sof(H7)=Sof(C8)=Sof(H8A)=Sof(H8B)=Sof(H8C)=Sof(C9)=Sof(H9A)=Sof(H9B)=
 Sof(H9C)=Sof(C10)=Sof(H10)=Sof(C11)=Sof(H11A)=Sof(H11B)=Sof(H11C)=Sof(C12)=
 Sof(H12A)=Sof(H12B)=Sof(H12C)=Sof(C13)=Sof(C14)=Sof(C15)=Sof(H15A)=Sof(H15B)=
 Sof(H15C)=Sof(C16)=Sof(H16A)=Sof(H16B)=Sof(H16C)=Sof(C17)=Sof(C18)=Sof(C19)=
 Sof(H19)=Sof(C20)=Sof(H20)=Sof(C21)=Sof(H21)=Sof(C22)=Sof(C23)=Sof(H23)=
 Sof(C24)=Sof(H24A)=Sof(H24B)=Sof(H24C)=Sof(C25)=Sof(H25A)=Sof(H25B)=Sof(H25C)=
 Sof(C26)=Sof(H26)=Sof(C27)=Sof(H27A)=Sof(H27B)=Sof(H27C)=Sof(C28)=Sof(H28A)=
 Sof(H28B)=Sof(H28C)=Sof(N1)=Sof(N2)=FVAR(1)
4.a Ternary CH refined with riding coordinates:
 C7(H7), C7A(H7A), C10(H10), C10A(H10A), C23(H23), C23A(H23A), C26(H26),
 C26A(H26A)
4.b Aromatic/amide H refined with riding coordinates:
 C5(H5), C4(H4), C3(H3), C5A(H5A), C4A(H4A), C3A(H3A), C19(H19), C20(H20),
 C21(H21), C19A(H19A), C20A(H20A), C21A(H21A)
4.c Fitted hexagon refined as free rotating group:
 C1(C6,C5,C4,C3,C2), C1A(C6A,C5A,C4A,C3A,C2A), C17(C18,C19,C20,C21,C22)
4.d Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9A(H9AA,H9AB,H9AC), C9(H9A,H9B,H9C), C8A(H8AA,H8AB,H8AC),
 C11(H11A,H11B,H11C), C11A(H11D,H11E,H11F), C12(H12A,H12B,H12C), C12A(H12D,H12E,
 H12F), C15(H15A,H15B,H15C), C15A(H15D,H15E,H15F), C16(H16A,H16B,H16C),
 C16A(H16D,H16E,H16F), C24(H24A,H24B,H24C), C24A(H24D,H24E,H24F), C25(H25A,H25B,
 H25C), C25A(H25D,H25E,H25F), C27(H27A,H27B,H27C), C27A(H27D,H27E,H27F),
 C28(H28A,H28B,H28C), C28A(H28D,H28E,H28F)
;
_shelx_res_checksum              66683
_olex2_submission_special_instructions 'No special instructions were received'