Synthesis and Characterisation of Lanthanide N-Trimethylsilyl and -Mesityl Functionalised Bis(iminophosphorano)methanides and -Methanediides
Abstract
:1. Introduction
2. Results and Discussion
Metal | Ionic radius | Covalent radius | Metal | Ionic radius | Covalent radius |
---|---|---|---|---|---|
Sc | 0.745 | 1.70 | Gd | 0.938 | 1.96 |
Y | 0.900 | 1.90 | Tb | 0.923 | 1.94 |
La | 1.032 | 2.07 | Dy | 0.912 | 1.92 |
Ce | 1.01 | 2.04 | Ho | 0.901 | 1.92 |
Pr | 0.99 | 2.03 | Er | 0.890 | 1.89 |
Nd | 0.983 | 2.01 | Tm | N/A | 1.90 |
Pm | N/A | 1.99 | Yb | 0.868 | 1.87 |
Sm | 0.958 | 1.98 | Lu | 0.861 | 1.87 |
Eu | 0.947 | 1.98 |
2.1. Preparation of BIPMTMSH Rare Earth Methanides
2.2. Preparation of {BIPMMesH} Rare Earth Methanides
2.3. Attempted Preparation of BIPMMes Rare Earth Carbene Complexes
2.4. Solution State Magnetic Properties of BIPMTMS and BIPMMes Rare Earth Complexes
Complex | Rare earth ion | Ground state term | µJ (µB) a | µeff (µB) |
---|---|---|---|---|
1a | Nd(III) | 4I9/2 | 3.68 | 4.14 |
1b | Gd(III) | 8S7/2 | 7.94 | 8.47 |
1c | Tb(III) | 7F6 | 9.72 | 9.46 |
3 | Gd(III) | 8S7/2 | 7.94 | 8.00 |
4 | Yb(III) | 2F7/2 | 4.53 | 4.29 |
5a | Dy(III) | 6H15/2 | 10.63 | 9.81 |
5b | Er(III) | 4I15/2 | 9.59 | 10.25 |
7b | Ce(III) | 2F5/2 | 2.54 | 1.88 |
3. Experimental Section
X-ray Crystallography
4. Conclusions
Acknowledgments
Conflicts of Interest
References and Notes
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Marshall, G.; Wooles, A.J.; Mills, D.P.; Lewis, W.; Blake, A.J.; Liddle, S.T. Synthesis and Characterisation of Lanthanide N-Trimethylsilyl and -Mesityl Functionalised Bis(iminophosphorano)methanides and -Methanediides. Inorganics 2013, 1, 46-69. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics1010046
Marshall G, Wooles AJ, Mills DP, Lewis W, Blake AJ, Liddle ST. Synthesis and Characterisation of Lanthanide N-Trimethylsilyl and -Mesityl Functionalised Bis(iminophosphorano)methanides and -Methanediides. Inorganics. 2013; 1(1):46-69. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics1010046
Chicago/Turabian StyleMarshall, George, Ashley J. Wooles, David P. Mills, William Lewis, Alexander J. Blake, and Stephen T. Liddle. 2013. "Synthesis and Characterisation of Lanthanide N-Trimethylsilyl and -Mesityl Functionalised Bis(iminophosphorano)methanides and -Methanediides" Inorganics 1, no. 1: 46-69. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics1010046