ii. 磷酸及其衍生物的水解，水的催化氧化

除了以上與生物和能源相關(guān)的課題外，離子的識(shí)別和控制等于環(huán)境相關(guān)的問題也是我們主要的研究方向。

科研項(xiàng)目：中組部青年****；國家自然科學(xué)基金青年基金；中國人民大學(xué)啟動(dòng)基金。

近期代表性論文：

1) Cao, R.; Lai, W. Z.; Du, P. W. “Catalytic Water Oxidation at Single Metal Sites” Energy Environ. Sci. 2012, ASAP, DOI: 10.1039/c2ee21494f.

2) Cao, R.; McCarthy, B. D.; Lippard, S. J. “Immobilization, Trapping, and Anion Exchange of Perrhenate Ion Using Copper-Based Tripodal Complexes” Inorg. Chem. 2011, 50, 9499-9507.

3) Li, Y.; Cao, R.; Lippard, S. J. “Design and Synthesis of a Novel Triptycene-Based Ligand for Modeling Carboxylate-Bridged Diiron Enzyme Active Sites” Org. Lett. 2011, 13, 5052-5055.

4) Cao, R.; Müller, P.; Lippard, S. J. “Tripodal Tris-tacn and Tris-dpa Platforms for Assembling Phosphate-Templated Trimetallic Centers” J. Am. Chem. Soc. 2010, 132, 17366-17369.

5) Cao, R.; O’Halloran, K. P.; Hillesheim, D. A.; Lense, S.; Hardcastle, K. I.; Hill, C. L. “Controlled Synthesis of a Functionalized Polytungstate Ligand and a {MaMbMc(PW9)2} Sandwich Complex” CrystEngComm 2011, 13, 738-740.

6) Cao, R.; O’Halloran, K. P.; Hillesheim, D. A.; Hardcastle, K. I.; Hill, C. L. “Mono-substituted Keggin, Wells-Dawson and {P2W21}-Type Polyoxometalates without Positional Disorder” CrystEngComm 2010, 12, 1518-1525.

7) Boone, M. A.; Tong, R. B.; McDonald, F. E.; Lense, S.; Cao, R.; Hardcastle, K. I. “Biomimetic Syntheses from Squalene-Like Precursors: Synthesis of ent-Abudinol B and Reassessment of the Structure of Muzitone” J. Am. Chem. Soc. 2010, 132, 5300-5308.

8) Fang, X. K.; Speldrich, M.; Schilder, H.; Cao, R.; O'Halloran, K. P.; Hill, C. L.; Kogerler, P. “Switching slow relaxation in a MnIII3MnIV cluster: an example of grafting single-molecule magnets onto polyoxometalates” Chem. Comm. 2010, 46, 2760-2765.

9) Geletii, Y. V.; Besson, C.; Hou, Y.; Yin, Q. S.; Musaev, D. G.; Quinonero, D.; Cao, R.; Hardcastle, K. I.; Proust, A.; Kogerler, P.; Hill, C. L. “Structural, Physicochemical, and Reactivity Properties of an All-inorganic, Highly Active Tetraruthenium Homogeneous Catalyst for Water Oxidation” J. Am. Chem. Soc. 2009, 131, 17360-17370.

10)Luo, Z.; Kögerler, P.; Cao, R.; Hill, C. L. “Synthesis, Structure, and Magnetism of a Polyoxometalate with Coordinatively Unsaturated d-Electron-Transition Metal Centers” Inorg. Chem. 2009, 48, 7812-7817.

11)Besson, C.; Musaev, D. G.; Lahootun, V.; Cao, R.; Chamoreau, L. M.; Villanneau, R.; Villain, F.; Thouvenot, R.; Geletii, Y. V.; Hill, C. L.; Proust, A. “Vicinal Dinitridoruthenium-Substituted Polyoxometalates g-[XW10O38{RuN}2]6- (X = Si or Ge)” Chem. Eur. J. 2009, 15, 10233-10243.

12)Cao, R.; Ma, H.; Geletii, Y. V.; Hardcastle, K. I.; Hill, C. L. “Structurally Characterized Iridium(III)-Containing Polytungstate and Catalytic Water Oxidation Activity” Inorg. Chem. 2009, 48, 5596-5598.