orthorhombic system

orthorhombic system

[¦ȯr·thə¦räm·bik ′sis·təm]
(crystallography)
A crystal system characterized by three axes of symmetry that are mutually perpendicular and of unequal length. Also known as rhombic system.
References in periodicals archive ?
If the number of carbon atoms in the side-chain increased, the packing transitioned to the orthorhombic system. In addition, when the carbon number was 7 or more, the structure became amorphous.
The x-ray diffraction studies disclose that the crystal corresponds to orthorhombic system a=8.49560(1)Ao b=10.0527(2) Ao c=21.3733(3) Ao v =1825.36(5) z = 4, 1.3469(1) mgm-3 R=0.03 and Mr = 1181.08.
Then she illustrates seven specific crystal systems with examples, among them a monocline system with sucrose, an orthorhombic system with polyethylene, a hexagonal system with magnesium, and a cubic system with acetylene.
The single crystal Xray diffraction analysis reveals that the complex [Sb(Hedta)] x 2[H.sub.2]O crystallises in the orthorhombic system with space group Pna2(1).
The crystal structure of the complex belongs to an orthorhombic system with the lattice parameters: a = 18.479 [Angstrom], b = 10.957 [Angstrom], and c = 7.343 [Angstrom], respectively.
The diffraction peaks of all three samples were indexed to an orthorhombic system with the space group Pnma.
Poly-FF [.sub.10.EMA] multilayers (25 m/Nm, 5[degrees]C) transferred by horizontal lifting method [41] formed two-dimensional orthorhombic system, which exhibits two kinds of short spacing.
(3) In the orthorhombic system, the axes of the primitive, body-centered, and face-centered cells are labeled to obey a < b < c.
The MgMnSiO4 compounds belong to the orthorhombic system with space group Pbnm(62) and the cell parameters: a=0.4794 nm, b=1.0491 nm, c=0.6123 nm.
As most materials crystallize in the low symmetry crystal systems (e.g., over 90% of organic and organometallic compounds crystallize in the triclinic, monoclinic, and orthorhombic systems), this type of lattice matching generally produces a limited and meaningful set of matches.
All the crystal molecular structures of c1, c2 and c3 belong to orthorhombic systems, and only one molecular unit was observed.