#------------------------------------------------------------------------------ #$Date: 2020-10-06 10:38:37 +0300 (Tue, 06 Oct 2020) $ #$Revision: 257400 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/55/80/1558017.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1558017 loop_ _publ_author_name 'M\"uller, Matthias' 'Karttunen, Antti J.' 'Buchner, Magnus R.' _publ_section_title ; Speciation of Be2+ in acidic liquid ammonia and formation of tetra- and octanuclear beryllium amido clusters ; _journal_issue 21 _journal_name_full 'Chemical Science' _journal_page_first 5415 _journal_page_last 5422 _journal_paper_doi 10.1039/D0SC01112F _journal_volume 11 _journal_year 2020 _chemical_formula_moiety '[Be4(NH2)6(NH3)4]2I6(NH3)' _chemical_formula_sum 'Be4 H42 I2 N16' _chemical_formula_weight 556.33 _space_group_crystal_system monoclinic _space_group_IT_number 15 _space_group_name_Hall '-C 2yc' _space_group_name_H-M_alt 'C 1 2/c 1' _atom_sites_solution_hydrogens mixed _audit_creation_method SHELXL-2014/7 _audit_update_record ; 2020-02-06 deposited with the CCDC. 2020-05-04 downloaded from the CCDC. ; _cell_angle_alpha 90 _cell_angle_beta 112.2170(10) _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 14.0852(2) _cell_length_b 10.17190(10) _cell_length_c 18.4646(2) _cell_measurement_reflns_used 39920 _cell_measurement_temperature 100(2) _cell_measurement_theta_max 152.92 _cell_measurement_theta_min 10.35 _cell_volume 2449.08(5) _computing_structure_refinement 'SHELXL-2014/7 (Sheldrick, 2014)' _diffrn_ambient_temperature 100(2) _diffrn_detector_area_resol_mean 5.81 _diffrn_measured_fraction_theta_full 1.000 _diffrn_measured_fraction_theta_max 0.998 _diffrn_measurement_device_type 'STOE STADIVARI' _diffrn_measurement_method 'rotation method, \w scans' _diffrn_radiation_type CuK\a _diffrn_radiation_wavelength 1.54178 _diffrn_reflns_av_R_equivalents 0.0373 _diffrn_reflns_av_unetI/netI 0.0160 _diffrn_reflns_Laue_measured_fraction_full 1.000 _diffrn_reflns_Laue_measured_fraction_max 0.998 _diffrn_reflns_limit_h_max 16 _diffrn_reflns_limit_h_min -17 _diffrn_reflns_limit_k_max 12 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_l_max 23 _diffrn_reflns_limit_l_min -14 _diffrn_reflns_number 21462 _diffrn_reflns_point_group_measured_fraction_full 1.000 _diffrn_reflns_point_group_measured_fraction_max 0.998 _diffrn_reflns_theta_full 67.679 _diffrn_reflns_theta_max 75.696 _diffrn_reflns_theta_min 5.175 _diffrn_source 'GeniX 3D HF Cu' _exptl_absorpt_coefficient_mu 20.295 _exptl_absorpt_correction_type multi-scan _exptl_crystal_colour colorless _exptl_crystal_density_diffrn 1.509 _exptl_crystal_description block _exptl_crystal_F_000 1104 _exptl_crystal_size_max 0.11 _exptl_crystal_size_mid 0.10 _exptl_crystal_size_min 0.09 _exptl_transmission_factor_max 0.0089 _exptl_transmission_factor_min 0.0003 _refine_diff_density_max 1.605 _refine_diff_density_min -0.805 _refine_diff_density_rms 0.161 _refine_ls_extinction_coef 0.00068(5) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_extinction_method 'SHELXL-2014/7 (Sheldrick 2014' _refine_ls_goodness_of_fit_ref 1.072 _refine_ls_hydrogen_treatment mixed _refine_ls_matrix_type full _refine_ls_number_parameters 140 _refine_ls_number_reflns 2547 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.072 _refine_ls_R_factor_all 0.0344 _refine_ls_R_factor_gt 0.0343 _refine_ls_shift/su_max 0.002 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w=1/[\s^2^(Fo^2^)+(0.0689P)^2^+3.9091P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0885 _refine_ls_wR_factor_ref 0.0886 _reflns_Friedel_coverage 0.000 _reflns_number_gt 2518 _reflns_number_total 2547 _reflns_threshold_expression 'I > 2\s(I)' _cod_data_source_file d0sc01112f2.cif _cod_data_source_block 6 _cod_depositor_comments ;Adding full bibliography for 1558013--1558021.cif. Adding full bibliography for 1558013--1558021.cif. ; _cod_original_sg_symbol_H-M 'C 2/c' _cod_database_code 1558017 _shelx_shelxl_version_number 2014/7 _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. ; _shelx_res_file ; 6.res created by SHELXL-2014/7 TITL 1_a.res in C2/c REM Old TITL 1 in C2/c REM SHELXT solution in C2/c REM R1 0.114, Rweak 0.005, Alpha 0.044, Orientation as input REM Formula found by SHELXT: Be2 N8 I CELL 1.54178 14.0852 10.1719 18.4646 90.000 112.217 90.000 ZERR 4.000 0.0002 0.0001 0.0002 0.000 0.001 0.000 LATT 7 SYMM -X, Y, 1/2-Z SFAC BE H N I UNIT 16 168 64 8 L.S. 7 BOND $H LIST 4 ACTA TEMP -173.15 FMAP 2 PLAN 20 EQIV $1 -0.5+x, 1.5-y, 0.5+z EQIV $2 1.5-x, -0.5+y, 0.5-z EQIV $3 x, 2-y, -0.5+z EQIV $4 0.5+x, 0-5+y, z EQIV $5 0.5-x, -0.5+y, 0.5-z EQIV $6 1-x, 2-y, 1-z EQIV $7 0.5-x, -0.5+y, 1.5-z EQIV $8 1-x, y, 0.5-z EQIV $9 0.5-x, 1.5-y, 1-z EQIV $10 0.5+x, 1.5-y, -0.5+z EQIV $11 1-x, -1+y, 1.5-z EQIV $12 0.5+x, 1.5-y, 0.5+z EQIV $13 x, -1+y, z EQIV $14 0.5-x, 0.5+y, 0.5-z EQIV $15 -0.5+x, 2.5-y, -0.5+z EQIV $16 0.5-x, 2.5-y, 1-z EQIV $17 1.5-x, 0.5+y, 0.5-z EQIV $18 0.5+x, 2.5-y, -0.5+z EQIV $19 1.5-x, 2.5-y, 1-z EQIV $20 1.5-x, 0.5-y, 1-z EQIV $21 0.5+x, 0.5-y, -0.5+z EQIV $22 0.5+x, 0.5+y, z EQIV $23 1.5-x, 0.5+y, 1.5-z EQIV $24 0.5-x, 0.5+y, 1.5-z EQIV $25 -0.5+x, 0.5+y, z EQIV $26 0.5-x, 0.5-y, 1-z EQIV $27 -0.5+x, 0.5-y, -0.5+z EQIV $28 -0.5+x, 0.5-y, 0.5+z EQIV $29 0.5-x, -1.5+y, 1.5-z EQIV $30 -0.5+x, -1.5+y, z EQIV $31 0.5+x, 0.5-y, 0.5+z EQIV $32 1.5-x, -1.5+y, 1.5-z EQIV $33 0.5+x, -1.5+y, z EQIV $34 -0.5+x, 1.5-y, -0.5+z EQIV $35 x, 1-y, -0.5+z EQIV $36 1.5-x, 1.5-y, 1-z EQIV $37 1-x, 1-y, 1-z EQIV $38 1.5-x, -0.5+y, 1.5-z EQIV $39 1-x, y, 1.5-z EQIV $40 -0.5+x, -0.5+y, z EQIV $41 x, 1-y, 0.5+z EQIV $42 x, y, z HTAB WGHT 0.068900 3.909100 EXTI 0.000683 FVAR 0.23476 BE1 1 0.402078 0.593501 0.253409 11.00000 0.01350 0.01584 = 0.01290 0.00134 0.00121 -0.00084 BE2 1 0.545559 0.788852 0.332158 11.00000 0.01599 0.02087 = 0.01288 -0.00218 0.00333 -0.00181 I1 4 0.544866 0.767601 0.594427 11.00000 0.01911 0.02482 = 0.01579 0.00549 0.00308 0.00395 N1 3 0.357341 0.688460 0.170523 11.00000 0.01423 0.02044 = 0.01426 0.00192 0.00037 0.00123 AFIX 23 H1A 2 0.303648 0.738248 0.170490 11.00000 -1.20000 H1B 2 0.334975 0.635969 0.127422 11.00000 -1.20000 AFIX 0 N2 3 0.447711 0.691699 0.335292 11.00000 0.01658 0.01886 = 0.01243 0.00018 0.00360 0.00079 AFIX 23 H2A 2 0.396125 0.743202 0.337641 11.00000 -1.20000 H2B 2 0.470841 0.640564 0.378957 11.00000 -1.20000 AFIX 0 N3 3 0.500000 0.886539 0.250000 10.50000 0.01783 0.01612 = 0.01712 0.00000 0.00421 0.00000 AFIX 23 H3A 2 0.551248 0.938976 0.247911 10.50000 -1.20000 H3B 2 0.448753 0.938978 0.252089 10.50000 -1.20000 AFIX 0 N4 3 0.500000 0.496520 0.250000 10.50000 0.01510 0.01554 = 0.01208 0.00000 0.00011 0.00000 AFIX 23 H4A 2 0.476472 0.444054 0.206917 10.50000 -1.20000 H4B 2 0.523527 0.444055 0.293083 10.50000 -1.20000 AFIX 0 N5 3 0.302039 0.491803 0.259734 11.00000 0.01612 0.01831 = 0.01478 0.00110 0.00229 -0.00107 AFIX 137 H5A 2 0.260953 0.540355 0.277406 11.00000 -1.50000 H5B 2 0.329993 0.424337 0.293445 11.00000 -1.50000 H5C 2 0.264232 0.458932 0.211572 11.00000 -1.50000 AFIX 0 N6 3 0.408218 0.890902 0.082520 11.00000 0.02161 0.02175 = 0.01514 0.00408 0.00358 0.00314 AFIX 137 H6A 2 0.342801 0.916472 0.073463 11.00000 -1.50000 H6B 2 0.409390 0.844953 0.040580 11.00000 -1.50000 H6C 2 0.448980 0.963134 0.090167 11.00000 -1.50000 AFIX 0 N7 3 0.184211 0.406448 0.082838 11.00000 0.02073 0.02683 = 0.01641 0.00191 0.00104 -0.00196 N8 3 0.161826 0.672159 0.317105 11.00000 0.02264 0.02470 = 0.02437 -0.00009 0.00749 -0.00048 N9 3 0.826864 1.015912 0.478372 11.00000 0.03030 0.03169 = 0.03354 -0.00161 0.01184 0.00132 H1 2 0.156380 0.476265 0.089171 11.00000 0.04230 H2 2 0.137057 0.351485 0.049165 11.00000 0.03577 H3 2 0.228105 0.420092 0.061176 11.00000 0.03770 H4 2 0.126369 0.690006 0.264529 11.00000 0.05602 H5 2 0.113878 0.666082 0.337583 11.00000 0.03691 H6 2 0.199835 0.736330 0.333236 11.00000 0.01798 H7 2 0.801621 1.054042 0.441902 11.00000 0.08678 H8 2 0.851850 0.954951 0.470041 11.00000 0.02908 H9 2 0.872928 1.073451 0.509727 11.00000 0.03232 HKLF 4 REM 1_a.res in C2/c REM R1 = 0.0343 for 2518 Fo > 4sig(Fo) and 0.0344 for all 2547 data REM 140 parameters refined using 0 restraints END WGHT 0.0689 3.9091 REM Instructions for potential hydrogen bonds HTAB N5 N8 HTAB N5 I1_$37 HTAB N5 N7 HTAB N6 N9_$8 HTAB N6 I1_$8 HTAB N6 I1_$3 HTAB N7 I1_$34 HTAB N7 I1_$5 HTAB N7 N9_$34 HTAB N8 I1_$34 HTAB N8 I1_$9 HTAB N8 N7_$14 HTAB N9 N8_$22 HTAB N9 I1_$36 HTAB N9 I1_$22 REM Highest difference peak 1.605, deepest hole -0.805, 1-sigma level 0.161 Q1 1 0.5551 0.8395 0.6227 11.00000 0.05 1.60 Q2 1 0.6411 0.7685 0.6366 11.00000 0.05 1.48 Q3 1 0.4493 0.7648 0.5537 11.00000 0.05 1.40 Q4 1 0.5405 0.8440 0.5739 11.00000 0.05 1.32 Q5 1 0.5346 0.6964 0.5585 11.00000 0.05 1.12 Q6 1 0.5535 0.6991 0.6313 11.00000 0.05 1.10 Q7 1 0.1736 0.6387 0.1173 11.00000 0.05 0.60 Q8 1 0.5000 0.4035 0.2500 10.50000 0.05 0.52 Q9 1 0.6638 0.6772 0.6233 11.00000 0.05 0.45 Q10 1 0.5194 0.8428 0.2887 11.00000 0.05 0.45 Q11 1 0.5463 0.3532 0.1965 11.00000 0.05 0.44 Q12 1 0.1796 0.5470 0.1378 11.00000 0.05 0.42 Q13 1 0.2073 0.7591 0.0969 11.00000 0.05 0.41 Q14 1 0.4374 0.9062 -0.0110 11.00000 0.05 0.41 Q15 1 0.4409 0.7552 0.3270 11.00000 0.05 0.40 Q16 1 0.0971 0.3445 -0.0073 11.00000 0.05 0.40 Q17 1 0.3942 1.0564 0.0673 11.00000 0.05 0.40 Q18 1 0.9076 1.0782 0.5600 11.00000 0.05 0.39 Q19 1 0.4384 1.0197 0.0090 11.00000 0.05 0.39 Q20 1 0.5418 0.5427 0.2614 11.00000 0.05 0.39 ; _shelx_res_checksum 50809 loop_ _space_group_symop_operation_xyz 'x, y, z' '-x, y, -z+1/2' 'x+1/2, y+1/2, z' '-x+1/2, y+1/2, -z+1/2' '-x, -y, -z' 'x, -y, z-1/2' '-x+1/2, -y+1/2, -z' 'x+1/2, -y+1/2, z-1/2' 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 Be1 Be 0.4021(2) 0.5935(3) 0.25341(18) 0.0152(6) Uani 1 1 d . . . . . Be2 Be 0.5456(3) 0.7889(4) 0.3322(2) 0.0172(6) Uani 1 1 d . . . . . I1 I 0.54487(2) 0.76760(2) 0.59443(2) 0.02094(13) Uani 1 1 d . . . . . N1 N 0.35734(16) 0.6885(2) 0.17052(13) 0.0178(4) Uani 1 1 d . . . . . H1A H 0.3036 0.7382 0.1705 0.021 Uiso 1 1 calc R U . . . H1B H 0.3350 0.6360 0.1274 0.021 Uiso 1 1 calc R U . . . N2 N 0.44771(16) 0.6917(2) 0.33529(12) 0.0165(4) Uani 1 1 d . . . . . H2A H 0.3961 0.7432 0.3376 0.020 Uiso 1 1 calc R U . . . H2B H 0.4708 0.6406 0.3790 0.020 Uiso 1 1 calc R U . . . N3 N 0.5000 0.8865(3) 0.2500 0.0177(6) Uani 1 2 d S T P . . H3A H 0.5512 0.9390 0.2479 0.021 Uiso 0.5 1 calc R U P . . H3B H 0.4488 0.9390 0.2521 0.021 Uiso 0.5 1 calc R U P . . N4 N 0.5000 0.4965(3) 0.2500 0.0157(6) Uani 1 2 d S T P . . H4A H 0.4765 0.4441 0.2069 0.019 Uiso 0.5 1 calc R U P . . H4B H 0.5235 0.4441 0.2931 0.019 Uiso 0.5 1 calc R U P . . N5 N 0.30204(16) 0.4918(2) 0.25973(12) 0.0174(4) Uani 1 1 d . . . . . H5A H 0.2610 0.5404 0.2774 0.026 Uiso 1 1 calc R U . . . H5B H 0.3300 0.4243 0.2934 0.026 Uiso 1 1 calc R U . . . H5C H 0.2642 0.4589 0.2116 0.026 Uiso 1 1 calc R U . . . N6 N 0.40822(18) 0.8909(3) 0.08252(13) 0.0205(5) Uani 1 1 d . . . . . H6A H 0.3428 0.9165 0.0735 0.031 Uiso 1 1 calc R U . . . H6B H 0.4094 0.8450 0.0406 0.031 Uiso 1 1 calc R U . . . H6C H 0.4490 0.9631 0.0902 0.031 Uiso 1 1 calc R U . . . N7 N 0.18421(19) 0.4064(3) 0.08284(14) 0.0231(5) Uani 1 1 d . . . . . N8 N 0.1618(2) 0.6722(3) 0.31711(16) 0.0243(5) Uani 1 1 d . . . . . N9 N 0.8269(2) 1.0159(3) 0.47837(19) 0.0319(6) Uani 1 1 d . . . . . H1 H 0.156(4) 0.476(5) 0.089(3) 0.042(12) Uiso 1 1 d . . . . . H2 H 0.137(3) 0.351(5) 0.049(3) 0.036(11) Uiso 1 1 d . . . . . H3 H 0.228(3) 0.420(5) 0.061(3) 0.038(11) Uiso 1 1 d . . . . . H4 H 0.126(4) 0.690(6) 0.265(3) 0.056(14) Uiso 1 1 d . . . . . H5 H 0.114(3) 0.666(5) 0.338(2) 0.037(11) Uiso 1 1 d . . . . . H6 H 0.200(3) 0.736(4) 0.333(3) 0.018(10) Uiso 1 1 d . . . . . H7 H 0.802(5) 1.054(8) 0.442(4) 0.09(2) Uiso 1 1 d . . . . . H8 H 0.852(3) 0.955(5) 0.470(2) 0.029(10) Uiso 1 1 d . . . . . H9 H 0.873(3) 1.073(4) 0.510(3) 0.032(10) Uiso 1 1 d . . . . . 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 Be1 0.0135(13) 0.0158(15) 0.0129(14) 0.0013(12) 0.0012(11) -0.0008(11) Be2 0.0160(15) 0.0209(16) 0.0129(15) -0.0022(13) 0.0033(12) -0.0018(13) I1 0.01911(16) 0.02482(18) 0.01579(16) 0.00549(5) 0.00308(10) 0.00395(5) N1 0.0142(10) 0.0204(11) 0.0143(10) 0.0019(9) 0.0004(8) 0.0012(9) N2 0.0166(10) 0.0189(11) 0.0124(10) 0.0002(9) 0.0036(8) 0.0008(9) N3 0.0178(13) 0.0161(14) 0.0171(14) 0.000 0.0042(11) 0.000 N4 0.0151(13) 0.0155(14) 0.0121(13) 0.000 0.0001(10) 0.000 N5 0.0161(9) 0.0183(11) 0.0148(10) 0.0011(8) 0.0023(8) -0.0011(8) N6 0.0216(10) 0.0217(11) 0.0151(10) 0.0041(9) 0.0036(8) 0.0031(9) N7 0.0207(11) 0.0268(13) 0.0164(11) 0.0019(10) 0.0010(9) -0.0020(11) N8 0.0226(11) 0.0247(14) 0.0244(12) -0.0001(10) 0.0075(9) -0.0005(10) N9 0.0303(14) 0.0317(16) 0.0335(15) -0.0016(13) 0.0118(12) 0.0013(13) loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source Be Be 0.0038 0.0014 '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 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' I I -0.3257 6.8362 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' 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 Be1 N4 108.67(19) . . ? N1 Be1 N2 110.3(2) . . ? N4 Be1 N2 109.12(19) . . ? N1 Be1 N5 110.58(19) . . ? N4 Be1 N5 109.5(2) . . ? N2 Be1 N5 108.68(19) . . ? N2 Be2 N3 109.0(2) . . ? N2 Be2 N1 108.4(2) . 2_655 ? N3 Be2 N1 110.6(2) . 2_655 ? N2 Be2 N6 109.5(2) . 2_655 ? N3 Be2 N6 109.3(2) . 2_655 ? N1 Be2 N6 109.9(2) 2_655 2_655 ? Be1 N1 Be2 109.4(2) . 2_655 ? Be1 N1 H1A 109.8 . . ? Be2 N1 H1A 109.8 2_655 . ? Be1 N1 H1B 109.8 . . ? Be2 N1 H1B 109.8 2_655 . ? H1A N1 H1B 108.2 . . ? Be2 N2 Be1 110.0(2) . . ? Be2 N2 H2A 109.7 . . ? Be1 N2 H2A 109.7 . . ? Be2 N2 H2B 109.7 . . ? Be1 N2 H2B 109.7 . . ? H2A N2 H2B 108.2 . . ? Be2 N3 Be2 109.5(3) . 2_655 ? Be2 N3 H3A 109.8 . . ? Be2 N3 H3A 109.8 2_655 . ? Be2 N3 H3B 109.8 . . ? Be2 N3 H3B 109.8 2_655 . ? H3A N3 H3B 108.2 . . ? Be1 N4 Be1 109.8(3) . 2_655 ? Be1 N4 H4A 109.7 . . ? Be1 N4 H4A 109.7 2_655 . ? Be1 N4 H4B 109.7 . . ? Be1 N4 H4B 109.7 2_655 . ? H4A N4 H4B 108.2 . . ? Be1 N5 H5A 109.5 . . ? Be1 N5 H5B 109.5 . . ? H5A N5 H5B 109.5 . . ? Be1 N5 H5C 109.5 . . ? H5A N5 H5C 109.5 . . ? H5B N5 H5C 109.5 . . ? Be2 N6 H6A 109.5 2_655 . ? Be2 N6 H6B 109.5 2_655 . ? H6A N6 H6B 109.5 . . ? Be2 N6 H6C 109.5 2_655 . ? H6A N6 H6C 109.5 . . ? H6B N6 H6C 109.5 . . ? H1 N7 H2 111(4) . . ? H1 N7 H3 112(4) . . ? H2 N7 H3 104(4) . . ? H4 N8 H5 105(4) . . ? H4 N8 H6 104(5) . . ? H5 N8 H6 113(4) . . ? H7 N9 H8 110(6) . . ? H7 N9 H9 103(6) . . ? H8 N9 H9 113(4) . . ? 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 Be1 N1 1.716(4) . ? Be1 N4 1.716(4) . ? Be1 N2 1.721(4) . ? Be1 N5 1.787(4) . ? Be2 N2 1.715(4) . ? Be2 N3 1.722(4) . ? Be2 N1 1.723(4) 2_655 ? Be2 N6 1.791(4) 2_655 ? N1 Be2 1.722(4) 2_655 ? N1 H1A 0.9100 . ? N1 H1B 0.9100 . ? N2 H2A 0.9100 . ? N2 H2B 0.9100 . ? N3 Be2 1.722(4) 2_655 ? N3 H3A 0.9100 . ? N3 H3B 0.9100 . ? N4 Be1 1.716(4) 2_655 ? N4 H4A 0.9100 . ? N4 H4B 0.9100 . ? N5 H5A 0.9100 . ? N5 H5B 0.9100 . ? N5 H5C 0.9100 . ? N6 Be2 1.791(4) 2_655 ? N6 H6A 0.9100 . ? N6 H6B 0.9100 . ? N6 H6C 0.9100 . ? N7 H1 0.84(5) . ? N7 H2 0.91(5) . ? N7 H3 0.87(5) . ? N8 H4 0.93(6) . ? N8 H5 0.89(4) . ? N8 H6 0.83(4) . ? N9 H7 0.74(8) . ? N9 H8 0.76(5) . ? N9 H9 0.90(5) . ?