The “periodic table” of benzotriazoles: Uranium(VI) complexes

Tsantis, Sokratis T.; Mouzakitis, Maria; Savvidou, Aikaterini; Raptopoulou, Catherine P.; Psycharis, Vassilis; Perlepes, Spyros P.

doi:10.1016/j.inoche.2015.06.033

Cited by 12 publications

(6 citation statements)

References 28 publications

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“…This review can be considered as a continuation of the interest of our group in some aspects of An chemistry [13][14][15][16] and coordination chemistry of Schiff bases with 3d [17,18], 4f [19][20][21] and 5f-metal [15,16] ions, with emphasis on dinuclear and polynuclear complexes and their magnetic, optical and catalytic properties.…”

Section: Scope and Organization Of This Reviewmentioning

confidence: 99%

“…The reaction of 1,3-bis(salicylideneamino)-2-propanol (H2L 13 [87]. Compound 14 reacts with 1 equiv.…”

Section: Dinuclear Uranyl(vi) Complexesmentioning

confidence: 99%

“…These thermodynamic parameters suggest differences in the coordination abilities of S to {UO2(salophen)} (DMF<DMSO) and the solvent effect on the formation of 19 (CH2Cl2<CHCl3). The Schiff basses H3L 13 and H3L 18 have identical backbones, and complexes [(UO2)2(OH)(L 13 )-(DMF)2] (15), Figure 21, and [(UO2)2(OH)(L 18 )(DMF)2] (22), have completely similar structures [86,91].…”

Section: Dinuclear Uranyl(vi) Complexesmentioning

confidence: 99%

“…Each Li I ion is quadrupally "bridged" to two salen 2− oxygen atoms, one uranyl(VI) oxido atom and one bridging (μ4) oxido group; each of the latter bridges two U VI and two Li I centers. (13) In an excellent study aiming at the investigation of CCIs in uranyl(V) complexes [106], the group of Mazzanti isolated the interesting decomposition product [Li 4 (UO 2 ) 4 (O) 2 (salen) 4 ] (41), which is the only tetranuclear uranyl(VI) cluster reported to-date. The lower stability of {U V O 2 } + complexes of salen 2− in the presence of Li I is probably the consequence of both steric and electronic effects associated to the higher charge/ionic radius of Li + (relative to K + and Rb + , vide infra).…”

Section: Trinuclear and Tetranuclear Uranyl(vi) Clustersmentioning

confidence: 99%

“…The Schiff basses H 3 L13 and H 3 L18 have identical backbones, and complexes [(UO 2 ) 2 (OH)(L 13 )-(DMF) 2 ] (15),Figure 21, and [(UO 2 ) 2 (OH)(L 18 )(DMF) 2 ] (22), have completely similar structures[86,91].Complex (Et 3 NH) 2 [(UO 2 ) 2 (H HO salophen) 2 ] (23) was prepared by the template reaction of 1,2-phenylenediamine (1 equiv. ), 2,3-dihydroxybenzaldehyde (2 equiv.)…”

mentioning

confidence: 99%

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Oligonuclear Actinoid Complexes with Schiff Bases as Ligands—Older Achievements and Recent Progress

Tsantis

Tzimopoulos

Hołyńska

et al. 2020

IJMS

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Even 155 years after their first synthesis, Schiff bases continue to surprise inorganic chemists. Schiff-base ligands have played a major role in the development of modern coordination chemistry because of their relevance to a number of interdisciplinary research fields. The chemistry, properties and applications of transition metal and lanthanoid complexes with Schiff-base ligands are now quite mature. On the contrary, the coordination chemistry of Schiff bases with actinoid (5f-metal) ions is an emerging area, and impressive research discoveries have appeared in the last 10 years or so. The chemistry of actinoid ions continues to attract the intense interest of many inorganic groups around the world. Important scientific challenges are the understanding the basic chemistry associated with handling and recycling of nuclear materials; investigating the redox properties of these elements and the formation of complexes with unusual metal oxidation states; discovering materials for the recovery of trans-{UVIO2}2+ from the oceans; elucidating and manipulating actinoid-element multiple bonds; discovering methods to carry out multi-electron reactions; and improving the 5f-metal ions’ potential for activation of small molecules. The study of 5f-metal complexes with Schiff-base ligands is a currently “hot” topic for a variety of reasons, including issues of synthetic inorganic chemistry, metalosupramolecular chemistry, homogeneous catalysis, separation strategies for nuclear fuel processing and nuclear waste management, bioinorganic and environmental chemistry, materials chemistry and theoretical chemistry. This almost-comprehensive review, covers aspects of synthetic chemistry, reactivity and the properties of dinuclear and oligonuclear actinoid complexes based on Schiff-base ligands. Our work focuses on the significant advances that have occurred since 2000, with special attention on recent developments. The review is divided into eight sections (chapters). After an introductory section describing the organization of the scientific information, Sections 2 and 3 deal with general information about Schiff bases and their coordination chemistry, and the chemistry of actinoids, respectively. Section 4 highlights the relevance of Schiff bases to actinoid chemistry. Sections 5–7 are the “main menu” of the scientific meal of this review. The discussion is arranged according the actinoid (only for Np, Th and U are Schiff-base complexes known). Sections 5 and 7 are further arranged into parts according to the oxidation states of Np and U, respectively, because the coordination chemistry of these metals is very much dependent on their oxidation state. In Section 8, some concluding comments are presented and a brief prognosis for the future is attempted.

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