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Like its lighter congener nickel(II) fluoride, PdF 2 adopts a rutile-type crystal structure, [2] [3] containing octahedrally coordinated palladium, which has the electronic configuration t 6 2g e 2 g. This configuration causes PdF 2 to be paramagnetic [4] due to two unpaired electrons, one in each e g-symmetry orbital of palladium.
Endomicroscopy is a technique for obtaining histology-like images from inside the human body in real-time, [1] [2] [3] a process known as ‘optical biopsy’. [ 4 ] [ 5 ] It generally refers to fluorescence confocal microscopy , although multi-photon microscopy and optical coherence tomography have also been adapted for endoscopic use.
This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
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Pd[PdF 6] is paramagnetic, and both Pd(II) and Pd(IV) occupy octahedral sites in the crystal structure. [2] [3] The Pd II-F distance is 2.17 Å, whereas the Pd IV-F distance is 1.90 Å. [4] Coordination environments of Pd II and Pd IV, showing different distances to F atoms
As the atoms of interacting molecules (or of different parts of the same molecule - intramolecular BSSE) [1] [2] approach one another, their basis functions overlap. Each monomer "borrows" functions from other nearby components, effectively increasing its basis set and improving the calculation of derived properties such as energy . [ 3 ]
In computational chemistry, spin contamination is the artificial mixing of different electronic spin-states.This can occur when an approximate orbital-based wave function is represented in an unrestricted form – that is, when the spatial parts of α and β spin-orbitals are permitted to differ.
pCLE, developed by Mauna Kea Technologies, is a fibre bundle transit through the 2.8 mm working channel (the hollow hole) of the standard endoscope into the GI tract. [1] With a fixed plane of imaging, each fibre acts as a pinhole to filter unwanted noise. The frame rate lies between 9 and 12 images/second. [1]