#------------------------------------------------------------------------------ #$Date: 2023-11-02 04:30:41 +0200 (Thu, 02 Nov 2023) $ #$Revision: 287242 $ #$URL: file:///home/coder/svn-repositories/cod/cif/7/24/76/7247660.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_7247660 loop_ _publ_author_name 'George, Tanner' 'Brosseau, Christa L.' 'Masuda, Jason D.' _publ_section_title ; Electrochemical and X-ray structural evidence of multiple molybdenum precursor candidates from a reported non-aqueous electrodeposition of molybdenum disulfide ; _journal_issue 46 _journal_name_full 'RSC Advances' _journal_page_first 32199 _journal_page_last 32216 _journal_paper_doi 10.1039/D3RA04605B _journal_volume 13 _journal_year 2023 _chemical_formula_moiety 'C12 H26 Mo2 O11' _chemical_formula_sum 'C12 H26 Mo2 O11' _chemical_formula_weight 538.21 _space_group_crystal_system orthorhombic _space_group_IT_number 43 _space_group_name_Hall 'F 2 -2d' _space_group_name_H-M_alt 'F d d 2' _atom_sites_solution_hydrogens mixed _atom_sites_solution_primary dual _audit_creation_date 2023-09-10 _audit_creation_method ; Olex2 1.5 (compiled 2023.08.24 svn.re1ec1418 for OlexSys, GUI svn.r6817) ; _audit_update_record ; 2023-10-01 deposited with the CCDC. 2023-10-06 downloaded from the CCDC. ; _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 8 _cell_length_a 16.7363(3) _cell_length_b 24.6210(5) _cell_length_c 8.8062(2) _cell_measurement_reflns_used 9908 _cell_measurement_temperature 125.0 _cell_measurement_theta_max 45.19 _cell_measurement_theta_min 2.74 _cell_volume 3628.72(13) _computing_cell_refinement 'SAINT V8.40A (?, 2016)' _computing_data_reduction 'SAINT V8.40A (?, 2016)' _computing_molecular_graphics 'Olex2 1.5 (Dolomanov et al., 2009)' _computing_publication_material 'Olex2 1.5 (Dolomanov et al., 2009)' _computing_structure_refinement 'SHELXL 2018/3 (Sheldrick, 2015)' _computing_structure_solution 'SHELXT 2014/5 (Sheldrick, 2014)' _diffrn_ambient_temperature 125.00 _diffrn_detector_area_resol_mean 7.3910 _diffrn_detector_type 'Bruker PHOTON III' _diffrn_measured_fraction_theta_full 1.000 _diffrn_measured_fraction_theta_max 1.000 _diffrn_measurement_device '\k--geometry diffractometer' _diffrn_measurement_device_type 'Bruker D8 VENTURE' _diffrn_measurement_method '\f and \w scans' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.0568 _diffrn_reflns_av_unetI/netI 0.0487 _diffrn_reflns_Laue_measured_fraction_full 1.000 _diffrn_reflns_Laue_measured_fraction_max 1.000 _diffrn_reflns_limit_h_max 33 _diffrn_reflns_limit_h_min -32 _diffrn_reflns_limit_k_max 49 _diffrn_reflns_limit_k_min -49 _diffrn_reflns_limit_l_max 17 _diffrn_reflns_limit_l_min -15 _diffrn_reflns_number 39690 _diffrn_reflns_point_group_measured_fraction_full 0.998 _diffrn_reflns_point_group_measured_fraction_max 0.929 _diffrn_reflns_theta_full 25.242 _diffrn_reflns_theta_max 45.291 _diffrn_reflns_theta_min 2.741 _exptl_absorpt_coefficient_mu 1.436 _exptl_absorpt_correction_T_max 0.7494 _exptl_absorpt_correction_T_min 0.7016 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_process_details 'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0940 before and 0.0584 after correction. The Ratio of minimum to maximum transmission is 0.9362. The \l/2 correction factor is Not present.' _exptl_crystal_colour 'clear yellow' _exptl_crystal_colour_lustre clear _exptl_crystal_colour_primary yellow _exptl_crystal_density_diffrn 1.970 _exptl_crystal_description Prism _exptl_crystal_F_000 2160 _exptl_crystal_size_max 0.16 _exptl_crystal_size_mid 0.16 _exptl_crystal_size_min 0.115 _refine_diff_density_max 0.836 _refine_diff_density_min -0.673 _refine_diff_density_rms 0.128 _refine_ls_abs_structure_details ; Flack x determined using 2123 quotients [(I+)-(I-)]/[(I+)+(I-)] (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). ; _refine_ls_abs_structure_Flack -0.015(16) _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.010 _refine_ls_hydrogen_treatment mixed _refine_ls_matrix_type full _refine_ls_number_parameters 118 _refine_ls_number_reflns 7050 _refine_ls_number_restraints 1 _refine_ls_restrained_S_all 1.010 _refine_ls_R_factor_all 0.0485 _refine_ls_R_factor_gt 0.0309 _refine_ls_shift/su_max 0.001 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w=1/[\s^2^(Fo^2^)+(0.0160P)^2^+1.3443P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0448 _refine_ls_wR_factor_ref 0.0487 _reflns_Friedel_coverage 0.782 _reflns_Friedel_fraction_full 0.996 _reflns_Friedel_fraction_max 0.851 _reflns_number_gt 5824 _reflns_number_total 7050 _reflns_threshold_expression 'I > 2\s(I)' _cod_data_source_file d3ra04605b2.cif _cod_data_source_block mo_2020_1_6_jdm_tg89_0ma_a _cod_database_code 7247660 _shelx_shelxl_version_number 2018/3 _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_estimated_absorpt_t_max 0.852 _shelx_estimated_absorpt_t_min 0.803 _olex2_refinement_description ; 1. Fixed Uiso At 1.2 times of: All C(H,H) groups 2.a Secondary CH2 refined with riding coordinates: C1(H1A,H1B), C2(H2A,H2B), C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B), C6(H6A,H6B) ; _shelx_res_file ; TITL mo_2020_1_6_JDM_TG89_0ma_a.res in Fdd2 mo_2020_1_6_jdm_tg89_0ma_a.res created by SHELXL-2018/3 at 23:55:47 on 10-Sep-2023 REM Old TITL mo_2020_1_6_JDM_TG89_0ma in Fdd2 REM SHELXT solution in Fdd2 REM R1 0.031, Rweak 0.012, Alpha 0.008, Orientation as input REM Flack x = -0.031 ( 0.017 ) from Parsons' quotients REM Formula found by SHELXT: C12 Mo2 O11 CELL 0.71073 16.7363 24.621 8.8062 90 90 90 ZERR 8 0.0003 0.0005 0.0002 0 0 0 LATT -4 SYMM -X,-Y,+Z SYMM 0.25+X,0.25-Y,0.25+Z SYMM 0.25-X,0.25+Y,0.25+Z SFAC C H Mo O UNIT 96 208 16 88 EQIV $1 0.75-X,0.25+Y,-0.25+Z L.S. 30 PLAN 3 SIZE 0.115 0.16 0.16 TEMP -148.15 CONF HTAB O5 O2_$1 BIND O6 Mo1 BOND $H LIST 4 MORE -1 fmap 2 acta REM REM REM WGHT 0.016000 1.344300 FVAR 0.15406 MO1 3 0.327511 0.264408 0.376750 11.00000 0.00995 0.01125 = 0.01210 -0.00016 -0.00055 0.00039 O1 4 0.355259 0.267272 0.193542 11.00000 0.01535 0.02385 = 0.01531 -0.00111 0.00349 -0.00039 O2 4 0.412894 0.226794 0.485698 11.00000 0.01654 0.01551 = 0.02405 -0.00074 -0.00850 0.00157 O3 4 0.375817 0.326416 0.475222 11.00000 0.01608 0.01336 = 0.02011 -0.00085 -0.00420 -0.00179 O4 4 0.227347 0.308986 0.375093 11.00000 0.01230 0.01038 = 0.01528 0.00228 0.00092 0.00146 O5 4 0.247203 0.388888 0.123687 11.00000 0.02916 0.02411 = 0.01712 0.00183 0.00438 -0.00368 C1 1 0.460298 0.260345 0.582914 11.00000 0.02273 0.01944 = 0.02742 0.00036 -0.01237 -0.00162 AFIX 23 H1A 2 0.516242 0.247294 0.584498 11.00000 -1.20000 H1B 2 0.439117 0.259337 0.687843 11.00000 -1.20000 AFIX 0 C2 1 0.456663 0.317430 0.521113 11.00000 0.01880 0.02011 = 0.02410 -0.00014 -0.00760 -0.00363 AFIX 23 H2A 2 0.472400 0.343911 0.600248 11.00000 -1.20000 H2B 2 0.493208 0.321418 0.433420 11.00000 -1.20000 AFIX 0 C3 1 0.204002 0.365123 0.379430 11.00000 0.01762 0.01140 = 0.01577 0.00032 0.00184 0.00232 AFIX 23 H3A 2 0.248967 0.387431 0.417453 11.00000 -1.20000 H3B 2 0.158371 0.369702 0.449812 11.00000 -1.20000 AFIX 0 C4 1 0.180456 0.384104 0.222607 11.00000 0.02048 0.01600 = 0.01702 0.00411 -0.00084 0.00198 AFIX 23 H4A 2 0.141801 0.358044 0.178641 11.00000 -1.20000 H4B 2 0.153577 0.419806 0.230687 11.00000 -1.20000 AFIX 0 O6 4 0.250000 0.250000 0.622376 10.50000 0.02863 0.01049 = 0.01135 0.00000 0.00000 0.00209 C5 1 0.234031 0.297508 0.720086 11.00000 0.03474 0.01356 = 0.01373 -0.00205 0.00373 0.00123 AFIX 23 H5A 2 0.185293 0.316770 0.686051 11.00000 -1.20000 H5B 2 0.279565 0.323157 0.717425 11.00000 -1.20000 AFIX 0 C6 1 0.222745 0.274918 0.878529 11.00000 0.04043 0.02205 = 0.01236 -0.00160 0.00395 -0.00003 AFIX 23 H6A 2 0.166385 0.264569 0.896643 11.00000 -1.20000 H6B 2 0.239481 0.301512 0.956622 11.00000 -1.20000 AFIX 0 H5 2 0.275419 0.417569 0.153928 11.00000 0.04621 HKLF 4 REM mo_2020_1_6_JDM_TG89_0ma_a.res in Fdd2 REM wR2 = 0.0487, GooF = S = 1.010, Restrained GooF = 1.010 for all data REM R1 = 0.0309 for 5824 Fo > 4sig(Fo) and 0.0485 for all 7050 data REM 118 parameters refined using 1 restraints END WGHT 0.0188 0.0000 REM Highest difference peak 0.836, deepest hole -0.673, 1-sigma level 0.128 Q1 1 0.1717 0.2899 0.3766 11.00000 0.05 0.84 Q2 1 0.4807 0.2372 0.3761 11.00000 0.05 0.80 Q3 1 0.3595 0.3338 0.3853 11.00000 0.05 0.54 ; _shelx_res_checksum 56422 _olex2_submission_special_instructions 'No special instructions were received' loop_ _space_group_symop_operation_xyz 'x, y, z' '-x, -y, z' 'x+1/4, -y+1/4, z+1/4' '-x+1/4, y+1/4, z+1/4' 'x, y+1/2, z+1/2' '-x, -y+1/2, z+1/2' 'x+1/4, -y+3/4, z+3/4' '-x+1/4, y+3/4, z+3/4' 'x+1/2, y, z+1/2' '-x+1/2, -y, z+1/2' 'x+3/4, -y+1/4, z+3/4' '-x+3/4, y+1/4, z+3/4' 'x+1/2, y+1/2, z' '-x+1/2, -y+1/2, z' 'x+3/4, -y+3/4, z+1/4' '-x+3/4, y+3/4, z+1/4' 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 Mo1 Mo 0.32751(2) 0.26441(2) 0.37675(2) 0.01110(3) Uani 1 1 d . . . . . O1 O 0.35526(9) 0.26727(6) 0.19354(18) 0.0182(3) Uani 1 1 d . . . . . O2 O 0.41289(8) 0.22679(6) 0.48570(19) 0.0187(3) Uani 1 1 d . . . . . O3 O 0.37582(8) 0.32642(5) 0.47522(18) 0.0165(2) Uani 1 1 d . . . . . O4 O 0.22735(7) 0.30899(4) 0.3751(2) 0.01265(19) Uani 1 1 d . . . . . O5 O 0.24720(9) 0.38889(6) 0.1237(2) 0.0235(3) Uani 1 1 d . . . . . C1 C 0.46030(13) 0.26034(8) 0.5829(3) 0.0232(4) Uani 1 1 d . . . . . H1A H 0.516242 0.247294 0.584498 0.028 Uiso 1 1 calc R U . . . H1B H 0.439117 0.259337 0.687843 0.028 Uiso 1 1 calc R U . . . C2 C 0.45666(12) 0.31743(9) 0.5211(3) 0.0210(4) Uani 1 1 d . . . . . H2A H 0.472400 0.343911 0.600248 0.025 Uiso 1 1 calc R U . . . H2B H 0.493208 0.321418 0.433420 0.025 Uiso 1 1 calc R U . . . C3 C 0.20400(10) 0.36512(6) 0.3794(3) 0.0149(3) Uani 1 1 d . . . . . H3A H 0.248967 0.387431 0.417453 0.018 Uiso 1 1 calc R U . . . H3B H 0.158371 0.369702 0.449812 0.018 Uiso 1 1 calc R U . . . C4 C 0.18046(12) 0.38410(8) 0.2226(2) 0.0178(3) Uani 1 1 d . . . . . H4A H 0.141801 0.358044 0.178641 0.021 Uiso 1 1 calc R U . . . H4B H 0.153577 0.419806 0.230687 0.021 Uiso 1 1 calc R U . . . O6 O 0.250000 0.250000 0.6224(3) 0.0168(3) Uani 1 2 d S T P . . C5 C 0.23403(15) 0.29751(8) 0.7201(2) 0.0207(4) Uani 1 1 d . . . . . H5A H 0.185293 0.316770 0.686051 0.025 Uiso 1 1 calc R U . . . H5B H 0.279565 0.323157 0.717425 0.025 Uiso 1 1 calc R U . . . C6 C 0.22274(14) 0.27492(8) 0.8785(3) 0.0249(4) Uani 1 1 d . . . . . H6A H 0.166385 0.264569 0.896643 0.030 Uiso 1 1 calc R U . . . H6B H 0.239481 0.301512 0.956622 0.030 Uiso 1 1 calc R U . . . H5 H 0.2754(19) 0.4176(13) 0.154(5) 0.046(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 Mo1 0.00995(4) 0.01125(4) 0.01210(5) -0.00016(5) -0.00055(5) 0.00039(5) O1 0.0153(6) 0.0238(7) 0.0153(6) -0.0011(5) 0.0035(5) -0.0004(5) O2 0.0165(6) 0.0155(6) 0.0241(8) -0.0007(5) -0.0085(6) 0.0016(5) O3 0.0161(6) 0.0134(5) 0.0201(7) -0.0008(5) -0.0042(5) -0.0018(5) O4 0.0123(4) 0.0104(4) 0.0153(5) 0.0023(5) 0.0009(6) 0.0015(3) O5 0.0292(7) 0.0241(6) 0.0171(6) 0.0018(8) 0.0044(8) -0.0037(5) C1 0.0227(9) 0.0194(9) 0.0274(11) 0.0004(7) -0.0124(8) -0.0016(7) C2 0.0188(9) 0.0201(8) 0.0241(11) -0.0001(7) -0.0076(7) -0.0036(7) C3 0.0176(7) 0.0114(6) 0.0158(7) 0.0003(7) 0.0018(8) 0.0023(5) C4 0.0205(8) 0.0160(7) 0.0170(9) 0.0041(6) -0.0008(7) 0.0020(6) O6 0.0286(9) 0.0105(6) 0.0114(8) 0.000 0.000 0.0021(6) C5 0.0347(11) 0.0136(7) 0.0137(9) -0.0020(6) 0.0037(8) 0.0012(7) C6 0.0404(11) 0.0221(8) 0.0124(7) -0.0016(9) 0.0040(11) 0.0000(7) 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' Mo Mo -1.6832 0.6857 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0106 0.0060 '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 O1 Mo1 Mo1 106.12(5) . 14 ? O1 Mo1 O2 106.81(7) . . ? O1 Mo1 O3 106.38(7) . . ? O1 Mo1 O4 101.61(7) . . ? O1 Mo1 O4 98.96(7) . 14 ? O1 Mo1 O6 164.15(6) . . ? O2 Mo1 Mo1 125.47(5) . 14 ? O2 Mo1 O4 151.02(7) . . ? O2 Mo1 O4 84.96(6) . 14 ? O2 Mo1 O6 83.66(5) . . ? O3 Mo1 Mo1 127.72(4) . 14 ? O3 Mo1 O2 81.27(6) . . ? O3 Mo1 O4 153.74(7) . 14 ? O3 Mo1 O4 85.44(5) . . ? O3 Mo1 O6 86.68(5) . . ? O4 Mo1 Mo1 47.77(3) 14 14 ? O4 Mo1 Mo1 48.51(3) . 14 ? O4 Mo1 O4 96.28(4) . 14 ? O4 Mo1 O6 69.90(5) . . ? O4 Mo1 O6 69.59(5) 14 . ? O6 Mo1 Mo1 58.13(3) . 14 ? C1 O2 Mo1 115.20(12) . . ? C2 O3 Mo1 113.61(12) . . ? Mo1 O4 Mo1 83.72(4) . 14 ? C3 O4 Mo1 138.96(10) . . ? C3 O4 Mo1 137.24(10) . 14 ? C4 O5 H5 107(2) . . ? O2 C1 H1A 110.2 . . ? O2 C1 H1B 110.2 . . ? O2 C1 C2 107.45(17) . . ? H1A C1 H1B 108.5 . . ? C2 C1 H1A 110.2 . . ? C2 C1 H1B 110.2 . . ? O3 C2 C1 106.52(16) . . ? O3 C2 H2A 110.4 . . ? O3 C2 H2B 110.4 . . ? C1 C2 H2A 110.4 . . ? C1 C2 H2B 110.4 . . ? H2A C2 H2B 108.6 . . ? O4 C3 H3A 109.6 . . ? O4 C3 H3B 109.6 . . ? O4 C3 C4 110.14(17) . . ? H3A C3 H3B 108.1 . . ? C4 C3 H3A 109.6 . . ? C4 C3 H3B 109.6 . . ? O5 C4 C3 112.39(16) . . ? O5 C4 H4A 109.1 . . ? O5 C4 H4B 109.1 . . ? C3 C4 H4A 109.1 . . ? C3 C4 H4B 109.1 . . ? H4A C4 H4B 107.9 . . ? C5 O6 Mo1 118.47(10) . . ? C5 O6 Mo1 120.87(11) 14 . ? C5 O6 C5 108.7(2) . 14 ? O6 C5 H5A 110.6 . . ? O6 C5 H5B 110.6 . . ? O6 C5 C6 105.58(16) . . ? H5A C5 H5B 108.8 . . ? C6 C5 H5A 110.6 . . ? C6 C5 H5B 110.6 . . ? C5 C6 C6 102.73(13) . 14 ? C5 C6 H6A 111.2 . . ? C5 C6 H6B 111.2 . . ? C6 C6 H6A 111.2 14 . ? C6 C6 H6B 111.2 14 . ? H6A C6 H6B 109.1 . . ? 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 Mo1 Mo1 2.6897(3) 14 ? Mo1 O1 1.6803(16) . ? Mo1 O2 1.9545(14) . ? Mo1 O3 1.9330(13) . ? Mo1 O4 2.0038(11) . ? Mo1 O4 2.0270(11) 14 ? Mo1 O6 2.547(2) . ? O2 C1 1.430(3) . ? O3 C2 1.429(2) . ? O4 C3 1.4368(18) . ? O5 C4 1.421(3) . ? O5 H5 0.89(3) . ? C1 H1A 0.9900 . ? C1 H1B 0.9900 . ? C1 C2 1.508(3) . ? C2 H2A 0.9900 . ? C2 H2B 0.9900 . ? C3 H3A 0.9900 . ? C3 H3B 0.9900 . ? C3 C4 1.510(3) . ? C4 H4A 0.9900 . ? C4 H4B 0.9900 . ? O6 C5 1.476(2) . ? O6 C5 1.477(2) 14 ? C5 H5A 0.9900 . ? C5 H5B 0.9900 . ? C5 C6 1.514(4) . ? C6 C6 1.529(4) 14 ? C6 H6A 0.9900 . ? C6 H6B 0.9900 . ? loop_ _geom_hbond_atom_site_label_D _geom_hbond_atom_site_label_H _geom_hbond_atom_site_label_A _geom_hbond_distance_DH _geom_hbond_distance_HA _geom_hbond_distance_DA _geom_hbond_angle_DHA _geom_hbond_site_symmetry_A _geom_hbond_publ_flag O5 H5 O2 0.89(3) 1.93(3) 2.814(2) 175(4) 12_554 yes 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 Mo1 O2 C1 C2 -26.0(2) . . . . ? Mo1 O3 C2 C1 -40.2(2) . . . . ? Mo1 O4 C3 C4 -82.0(2) 14 . . . ? Mo1 O4 C3 C4 102.6(2) . . . . ? Mo1 O6 C5 C6 -155.31(13) . . . . ? O2 C1 C2 O3 41.0(2) . . . . ? O4 C3 C4 O5 -71.08(19) . . . . ? O6 C5 C6 C6 31.3(3) . . . 14 ? C5 O6 C5 C6 -12.19(11) 14 . . . ?