We consider the ESR of Co2+ in different environments: in an regular octahedron (Co2+ in a MgO crystal), in a deformed octahedron (Co2+ in single crystals and powder samples of NH4NiPO4.6H2O) or in a ...

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The results indicate a deformation of the B(OH)3 planar triangle, under isotropic stress, into a trigonal pyramid that serves as a ... by substitution of X with nucleophiles via a trigonal bipyramid ...

Double helical covalent polymers—which are spiraling collections of nature’s building blocks—are fundamental to life itself, and yet, despite decades of research, scientists have never been able to ...

Abstract: Direct localized surface plasmon resonance (LSPR) sensor using anisotropic gold nanoparticles with bipyramidal structure namely as gold nanobipyramids (GNBPs) has been proposed. The high ...

Abstract: Concave gold bipyramids (CAuBPs) exhibit enhanced saturable absorption characteristics due to their large electromagnetic-field enhancement, large third order nonlinearity and fast recovery ...

In this video, M. Chad Wallis, MD, demonstrates the Cohen cross-trigonal ureteral reimplant, considered the most commonly performed open reimplant procedure. The Cohen cross-trigonal ureteral ...

This is down to the arrangement of the atoms that have trigonal bipyramidal coordination (they are arranged to form a shape like two triangular based pyramids with their bases stuck together).