bipyramidal


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bipyramidal

adjective Consisting of 2 pyramids placed base to base; having a pyramid at each of the extremities.
References in periodicals archive ?
Characterization of Bacillus thuringiensis for chitinase activity Isolate Gram Crystalline Diameter Chitinase name reaction inclusions of the activity zone of (U/ml) clearance (cm) BG3 Positive Bipyramidal -- -- BG6 Positive Cuboidal 0.
Euhedral elongated bipyramidal primatic crystals (type-1) are generally Variscan-age zircons and usually richer in Hf than inherited zircons, which are mainly stubby (type-2) (Fig.
The monosubstituted and disubstituted transition states, 6 and 7 respectively (Figure 3 and Figure 4), had the ethynyl anion attacking the trigonal bipyramidal boron center in the axial position and the leaving group fluorine, coordinated with magnesium bromide, in the second axial position.
Charcot-Leyden crystals (degenerated eosinophils) are present as long, needle-shaped, or bipyramidal eosinophilic crystals (figure 2).
The structure of 1 consists of a mononuclear compound, with a non-common (in the case of cooper saccharinate), pseudotrigonal bipyramidal coordination geometry around the central ion [Cu.
Bipyramidal, pseudo-octahedral hausmannite crystals found long ago in cavities in massive ore at Ilfeld measure only around 1 cm (Jasche, 1838), but Haake et al.
The newest--and possibly the best--blue pigment in world history was born, due to manganese ions being structured in an unusual "trigonal bipyramidal coordination" in the presence of extreme heat.
Ni(II) complexes are known with a six coordinate octahedral configuration, five coordinate square pyramidal or trigonal bipyramidal structure and four coordinate square planar or tetrahedral configuration.
Four different morphologies of crystalline inclusions were observed, with bipyramidal and irregular crystal morphologies being the most prevalent.
The monomeric form of the complex has a five-member chelated ring structure with distorted trigonal bipyramidal (TBP) geometry.