Color Tuning in Garnet Oxides: The Role of Tetrahedral Coordination Geometry for 3 d Metal Ions and Ligand-Metal Charge Transfer (Band-Gap Manipulation)

2017 ◽  
Vol 12 (20) ◽  
pp. 2734-2743 ◽  
Author(s):  
Anupam Bhim ◽  
Sourav Laha ◽  
Jagannatha Gopalakrishnan ◽  
Srinivasan Natarajan
2010 ◽  
Vol 114 (13) ◽  
pp. 4494-4500 ◽  
Author(s):  
Li-Min Fu ◽  
Xi-Cheng Ai ◽  
Man-Yu Li ◽  
Xiao-Fan Wen ◽  
Rui Hao ◽  
...  

2018 ◽  
Vol 47 (46) ◽  
pp. 16603-16615 ◽  
Author(s):  
Biswajit Sadhu ◽  
Vijayakriti Mishra

Ligand-to-metal charge transfer, orbital-mixing, chelatoaromatic effect and topological constraints control the binding of lanthanide and actinide ions to hydroxypyridinone-based decorporation agents.


2014 ◽  
Vol 118 (6) ◽  
pp. 2970-2976 ◽  
Author(s):  
Xianfen Wang ◽  
Guandong Liu ◽  
Tatsumi Iwao ◽  
Masashi Okubo ◽  
Atsuo Yamada

2019 ◽  
Vol 48 (12) ◽  
pp. 4035-4045 ◽  
Author(s):  
Aline Nonat ◽  
David Esteban-Gómez ◽  
Laura Valencia ◽  
Paulo Pérez-Lourido ◽  
José Luis Barriada ◽  
...  

The stabilization of a divalent Europium provides an efficient pathway for the quenching of the luminescence in ten-coordinate macrocyclic complexes.


1975 ◽  
Vol 53 (4) ◽  
pp. 572-577 ◽  
Author(s):  
Joel L. Martin ◽  
Josef Takats

A novel synthetic approach, based on the reactivity of amido derivatives of the transition metals, M(NR2)x, towards protic reagents, for the synthesis of complexes of Ti, Zr, Hf, Nb, and Ta with o-mercaptophenol and 1,2-dihydroxybenzene is reported. The complexes, isolated as their tetraalkylammonium and tetraphenylarsonium salts, are moderately air stable, well behaved 2:1 (Ti, Zr, Hf) and 1:1 (Nb, Ta) electrolytes. The u. v.–visible spectra of the complexes, which are somewhat reminiscent of the corresponding benzene-1,2-dithiolates, are dominated by ligand-to-metal charge transfer bands. The band positions change in the expected manner, hypsochromic shifts in the order C6H4S22− < C6H4SO2− < C6H4O22− for a given metal and Ti < Zr ∼ Hf, Nb < Ta, Nb < Zr for a given ligand. lt is argued that these spectral resemblances could be a possible indication of variations in coordination geometry of the reported complexes similar to the ones found in compounds of benzene-1,2-dithiol.


2015 ◽  
Vol 2015 (18) ◽  
pp. 3019-3027 ◽  
Author(s):  
Yolanda C. Miranda ◽  
Leide L. A. L. Pereira ◽  
José H. P. Barbosa ◽  
Hermi F. Brito ◽  
Maria C. F. C. Felinto ◽  
...  

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