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O que (quem) é trigonal - definição

Trigonal Pyramid (chemistry); Trigonal pyramid; Trigonal pyramid (chemistry); Trigonal Pyramidal; Trigonal pyramidal; Pyramidal molecule

trigonal

['tr?g(?)n(?)l]

¦ adjective

1. triangular.

chiefly Biology triangular in cross section.

2. denoting a crystal system with three equal axes separated by equal angles that are not right angles.

Derivatives

trigonally adverb

Trigonal

·adj Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles.

Trigonal bipyramidal molecular geometry

MOLECULAR GEOMETRY WITH 5 ATOMS BONDED TO A CENTRAL ATOM AND NO LONE PAIR.

Pseudotrigonal bipyramidal; Trigonal bipyramidal; Apical (chemistry); Trigonal bipyramid molecular geometry; Triangular bypyramidal; Trigonal Bipyramidal; Trigonal bipyramidal geometry; Triangular bipyramidal molecular geometry

In chemistry, a trigonal bipyramid formation is a molecular geometry with one atom at the center and 5 more atoms at the corners of a triangular bipyramid. This is one geometry for which the bond angles surrounding the central atom are not identical (see also pentagonal bipyramid), because there is no geometrical arrangement with five terminal atoms in equivalent positions.

https://en.wikipedia.org/wiki/Trigonal_bipyramidal_molecular_geometry

Wikipédia

Trigonal pyramidal molecular geometry

In chemistry, a trigonal pyramid is a molecular geometry with one atom at the apex and three atoms at the corners of a trigonal base, resembling a tetrahedron (not to be confused with the tetrahedral geometry). When all three atoms at the corners are identical, the molecule belongs to point group C_3v. Some molecules and ions with trigonal pyramidal geometry are the pnictogen hydrides (XH₃), xenon trioxide (XeO₃), the chlorate ion, ClO⁻
₃, and the sulfite ion, SO²⁻
₃. In organic chemistry, molecules which have a trigonal pyramidal geometry are sometimes described as sp³ hybridized. The AXE method for VSEPR theory states that the classification is AX₃E₁.

https://en.wikipedia.org/wiki/Trigonal pyramidal molecular geometry