caa a22 4500 475848071 CHVBK 20180406123920.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1023/A:1009045722437 doi (NATIONALLICENCE)springer-10.1023/A:1009045722437 Deprotonated Amines Formed Through Coordination to Sulfur/Oxygen-Bridged Incomplete Cubane-Type Molybdenum Clusters [Elektronische Daten] [Takashi Shibahara, Noriko Kurimoto, Shunji Kiyoda, Yoshimasa Kobayashi, Genta Sakane] Oxygen/sulfur-bridged incomplete cubane-type molybdenum aqua clusters [Mo3(μ 3-S)(μ-X)(μ-S)2(H2O)9]4+ (X=O,S) in hydrochloric acid react with dien (diethylenetriamine) to give [Mo3(μ 3-S)(μ-X)(μ-S)2(dien−)(dien)2]Cl3·nH2O [1, X=O, n=3; 2, X=S, n=4; dien−=NH2(CH2)2NH(CH2)2NH−], respectively, where each cluster has a deprotonated dien. The X-ray structural analysis of 1 revealed proton dissociation from an amino group of one of the three dien ligands: one Mo-N distance [1.987(4) Å] is clearly shorter than the other eight Mo-N distances [2.229(3)-2.276(3) Å]. The 1H NMR spectra of the Mo-dien clusters 1 and 2 in D2O show two well-resolved methylene proton signals in the 2.8- to 3.0-ppm region, which indicates that both deprotonated amines in 1 and 2 receive D+ ions from solvent D2O. The factors for the proton dissociation are discussed. Plenum Publishing Corporation, 2000 deprotonated amines nationallicence sulfur-bridge nationallicence incomplete cubane-type nationallicence molybdenum cluster nationallicence 1H NMR nationallicence Shibahara Takashi Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut Kurimoto Noriko Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut Kiyoda Shunji Research Institute for Advanced Science and Technology, Osaka Prefecture University, Gakuen-cho, Sakai-shi, 599-8570, Osaka, Japan aut Kobayashi Yoshimasa Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut Sakane Genta Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 11/2(2000-06-01), 333-341 1040-7278 11:2<333 2000 11 10876 https://doi.org/10.1023/A:1009045722437 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009045722437 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shibahara Takashi Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut NATIONALLICENCE 700 1- Kurimoto Noriko Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut NATIONALLICENCE 700 1- Kiyoda Shunji Research Institute for Advanced Science and Technology, Osaka Prefecture University, Gakuen-cho, Sakai-shi, 599-8570, Osaka, Japan aut NATIONALLICENCE 700 1- Kobayashi Yoshimasa Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut NATIONALLICENCE 700 1- Sakane Genta Department of Chemistry, Okayama University of Science, Ridai-cho, 700-0005, Okayama, Japan aut NATIONALLICENCE 773 0- Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 11/2(2000-06-01), 333-341 1040-7278 11:2<333 2000 11 10876 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer