Hydrothermal synthesis, crystal structure, and characterization of a new pseudo-two-dimensional uranyl oxyfluoride, [N(C2H5)(4)](2)[(UO2)(4)(OH2)(3)F-10] by Ok, K, O'Hare, D

“…[N(C2H5)4]2[(UO2)4(OH2)3F10] reveals a novel pseudo-two-dimensional crystal structure that is composed of UO2F5, UO3F4, and UO4F3 pentagonal bipyramids. Each uranyl pentagonal bipyramid shares edges and corners through F atoms to form a six-membered ring. …”

Mo3VOx catalyst in biomass conversion: A review in structural evolution and reaction pathways by Bagheri, S., Julkapli, N.M.

“…Its synthesis via sol gel or hydrothermal methods focused on the production of pentagonal polyoxomolybdate unit in the reaction precursor assembles with other V and Mo ions to form crystalline MoV oxides with pentagonal, hexagonal, and heptagonal units in either trigonal or orthorhombic phases. …”
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Quantitative Anatomical Characteristics of Virgin Cork in <i>Quercus variabilis</i> Grown in Korea by Denni Prasetia, Byantara Darsan Purusatama, Jong-Ho Kim, Go-Un Yang, Jae-Hyuk Jang, Se-Yeong Park, Seung-Hwan Lee, Nam-Hun Kim

“…</i> The frequency of pentagonal cork cells in the transverse and radial sections was higher in the cork of <i>Q. suber</i> than in <i>Q. variabilis.…”
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Nonlinear photonic disclination states by Boquan Ren, Hongguang Wang, Yaroslav V. Kartashov, Yongdong Li, Yiqi Zhang

“…Here, we present the first example of the nonlinear photonic disclination state bifurcating from its linear counterpart in the disclination lattice with a pentagonal or heptagonal core. We show that nonlinearity allows us to tune the location of the disclination states in the bandgap and notably affects their shapes. …”
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The polyhedron on Duerer's "Melencolia I" by Tine Kurent

“…The polyhedron with triangular and pentagonal faces on the Duerer's "MELENCOLIA I" engraving is said to be a cube with two opposite corners cut off.  …”
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catena-poly[tetramethylammonium[[(nitrato-kappa O-2,O ')dioxouranium]-mu(3)-sulfato]] by Doran, M, Norquist, A, O'Hare, D

“…Each U atom is seven-coordinate, in a pentagonal bipyramidal geometry. Each sulfate tetrahedron bridges three adjacent uranium centres and each nitrate anion shares an edge with a [UO 7] polyhedron. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.…”

Bis(mu-diphenylarsine-kappa As-2:As)bis[tetracarbonyltungsten(0)] by Tiekink, E.R.T., Wardell, J.L.

“…The coordination geometry for each W atom is based on a pentagonal bipyramid within a As2C4W donor set, with carbonyl ligands defining the axial positions; the As atoms exist within distorted tetrahedral C2W2 donor sets.…”

Tris(2-chlorobenzyl)[3-(4-methylphenyl)prop-2-enoato-&amp;#954;O]tin(IV) by Thy Chun Keng, Kong Mun Lo, Seik Weng Ng

“…If the doubly bonded carbonyl O atom is taken into account for the coordination sphere of Sn [Sn...O = 2.808&amp;#8197;(2)&amp;#8197;&amp;#197;], the coordination geometry can be described as a cis-pentagonal bipyramid.…”
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Poly[[1,4-bis-(3-aminopropyl)piperazinium] [[dioxouranium(VI)]-di-mu(2),mu(3)-sulfato]] by Doran, M, Norquist, A, O'Hare, D

“…Each UVI cation is seven-coordinate in a pentagonal bipyramidal geometry, and each sulfate tetrahedron bridges beween two adjacent uranium centres to form layers. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.…”

High-Performance Hydrogen-Selective Pd-Ag Membranes Modified with Pd-Pt Nanoparticles for Use in Steam Reforming Membrane Reactors by Iliya Petriev, Polina Pushankina, Georgy Andreev, Sergei Ivanin, Stepan Dzhimak

“…A unique method for synthesizing a surface modifier for metallic hydrogen permeable membranes based on non-classic bimetallic pentagonally structured Pd-Pt nanoparticles was developed. …”
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Structural trends in ten-vertex endohedral clusters, M@E(10) and the synthesis of a new member of the family, [Fe@Sn10]3-. by Krämer, T, Duckworth, J, Ingram, MD, Zhou, B, McGrady, J, Goicoechea, J

“…The preference for a pentagonal prismatic geometry in [Fe@Ge10](3-) emerges as a natural consequence of backbonding to the cage from four orthogonal 3d orbitals of the low-valent metal ion. …”

Descrição dos Ovos e dos Estádios Ninfais de Triatoma jurbergi Carcavallo, Galvão & Lent, 1998 Vistos Através de Microscopia Óptica e Eletrônica de Varredura (Hemiptera, Reduviidae... by José Jurberg, Maria Beatriz Araújo Silva, Cleber Galvão, Dayse da Silva Rocha, Helene Santos Barbosa, Rodolfo U Carcavallo

“…Eggs showed the operculum and surface with pentagonal and hexagonal cells, with small fractures and punctuations randomly distributed. …”
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catena-poly[1-methylpiperazinium [[aqua-dioxouranium(VI)]-di-mu-sulfato-kappa O-4 : O ']] by Stuart, C, Doran, M, Norquist, A, O'Hare, D

“…Each UVI atom is seven-coordinate in a pentagonal bipyramidal geometry, and each sulfate tetrahedron bridges two adjacent uranium centres. …”

catena-poly[cyclohexane-1,4-diammonium[[dioxo(sulfato-kappa O-2,O ')uranium(VI)]-mu-sulfato]dihydrate] by Doran, M, Norquist, A, O'Hare, D

“…Each UVI atom is seven-coordinate in a pentagonal bipyramidal geometry and the sulfate tetrahedra either bridge between two adjacent uranium centres or share an edge with a single [UO7] polyhedron. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.…”

Fuzzy n−Controlled Metric Space by Salman Furqan, Naeem Saleem, Salvatore Sessa

“…This manuscript consists of the idea of n−controlled metric space in fuzzy set theory to generalize a number of fuzzy metric spaces in the literature, for example, pentagonal, hexagonal, triple, and double controlled metric spaces and many other spaces in fuzzy environment. …”
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Di-&amp;#956;-chlorido-bis{[1,2-bis(pyridin-2-ylmethoxy)benzene-&amp;#954;4N,O,O&amp;#8242;,N&amp;#8242;]chloridocadmium} by Guang-Feng Hou, Ying Liu, Ying-Hui Yu, Jin-Sheng Gao

“…In centrosymmetric dinuclear title compound, [Cd2Cl4(C18H16N2O2)2], the CdII atom is seven-coordinated in a pentagonal&amp;#8211;bipyramidal environment defined by two N atoms and two O atoms from one ligand and three Cl&amp;#8722; anions, two of which are bridging. …”
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Spinning hexagons by Carlos Bercini, Vasco Gonçalves, Alexandre Homrich, Pedro Vieira

“…With the integrability approach established we open the ground to study the large spin limit where dualities with null Wilson loops and integrable pentagons must appear.…”
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On-Surface Synthesis of a π-Extended Diaza[8]circulene by Nakamura, Kimihiro, Li, Qiang-Qiang, Krejčí, Ondřej, Foster, Adam S., Sun, Kewei, Kawai, Shigeki, Ito, Shingo

“…Here we describe the first example of a π-extended diaza[8]circulene surrounded by and fused with six hexagons and two pentagons, which was successfully synthesized only by a combined in-solution and on-surface synthetic strategy. …”
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The Genesis of Pyrite in the Fule Pb-Zn Deposit, Northeast Yunnan Province, China: Evidence from Mineral Chemistry and In Situ Sulfur Isotope by Meng Chen, Tao Ren, Shenjin Guan

“…Zoned, euhedral cubic and pentagonal dodecahedral and anhedral pyrites were observed, and they are thought to comprise two generations. …”
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Variable dimensionality in the UO2(CH3CO2)(2)center dot 2H(2)O/HF/isonicotinic acid system: Synthesis and structures of zero-, one-, and two-dimensional uranium isonicotinates by Kim, J, Norquist, A, O'Hare, D

“…The first one-dimensional compound, [UO2F2][C5H5NCO2] (2), contains a chain of edge-sharing [UO3F4] pentagonal bipyramids with isonicotinate ligands separating the chains. …”