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Abstract Serendipitous measurements of deep internal wave signatures are evident in oscillatory variations around the background descent rates reported by one model of Deep Argo float. For the 10,045 profiles analyzed here, the average root‐mean‐square of vertical velocity variances,, from 1,000 m to the seafloor, is 0.0045 m s−1, with a 5%–95% range of 0.0028–0.0067 m s−1. Dominant vertical wavelengths,λz, estimated from the integrals of lagged autocorrelation sequences have an average value of 757 m, with a 5%–95% range of 493–1,108 m. Bothandλzexhibit regional variations among and within some deep ocean basins, with generally largerand shorterλzin regions of rougher bathymetry or stronger deep currents. These correlations are both expected, since largerand shorterλzshould be found near internal wave generation regions.
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Formal Nickelate(−I) Complexes Supported by Group 13 Ions
Abstract Formal nickelate(−I) complexes bearing Group 13 metalloligands (M=Al and Ga) were isolated. These 17 e−complexes were synthesized by one‐electron reduction of the corresponding Ni0→MIIIprecursors, and were investigated by single‐crystal X‐ray diffraction, EPR spectroscopy, and quantum chemical calculations. Collectively, the experimental and computational data support: 1) the strengthening of the Ni−M bond upon one‐electron reduction, and 2) the delocalization of the unpaired spin across the Ni and M atoms. An intriguing electronic configuration is revealed where three valence electrons occupy two σ‐type bonding interactions: Ni(3d)2→M and σ‐(Ni−M)1. The latter is an unusual Ni−M σ‐bonding molecular orbital that comprises primarily the Ni 4pzand M npz/ns atomic orbitals.
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- PAR ID:
- 10061125
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Angewandte Chemie International Edition
- Volume:
- 57
- Issue:
- 26
- ISSN:
- 1433-7851
- Page Range / eLocation ID:
- p. 7815-7819
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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