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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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.…”

Bis(acetato-kappa O-2,O `)diphenyl(pyridine-kappa N)tin(IV) by Khaledi, H., Ali, H.M., Abdulla, M.A.

“…In both molecules, the Sn-IV atom is sevencoordinated in a distorted pentagonal-bipyramidal geometry with the two phenyl groups in axial positions. …”

Bis (acetato-2O, O') diphenyl (pyridine-N) tin (IV) by Khaledi, H., Abdulla, M.A., Ali, Hapipah Mohd

“…In both molecules, the SnIV atom is sevencoordinated in a distorted pentagonal-bipyramidal geometry with the two phenyl groups in axial positions. …”
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Bis(acetato-kappa O-2,O ')diphenyl(pyridine-kappa N)tin(IV) by Khaledi, H., Abdulla, M.A., Ali, Hapipah Mohd

“…In both molecules, the Sn-IV atom is sevencoordinated in a distorted pentagonal-bipyramidal geometry with the two phenyl groups in axial positions. …”
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Di-mu-nicotinato-kappa N-2/O;kappa O-2/N-bis[aquabis(4-bromobenzyl)(nicotinato-kappa O-2,O `)tin(IV)] by Keng, C.T., Lo, K.M., Ng, S.W.

“…The two Sn atoms exist in trans-C2SnNO4 pentagonal-bipyramidal geometries. Adjacent dinuclear units are linked by O-H...N hydrogen bonds, generating a linear chain, which propagates in the b-axis direction. …”

Bis(pyridine-κN){N2,N2′-[1,1′-(pyridine-2,6-di­yl)di­ethyl­­idyne]benzene­sulfono­hydrazonato-κ5O,N,N′,N′′,O′}nickel(II) by Yusnita, Juahir, Ali, Hapipah Mohd, Abdulla, Mahmood A., Robinson, Ward T., Khaledi, Hamid

“…In the crystal structure of the title compound, [Ni(C21H19N5O4S2)(C5H5N)2], the metal center is seven-coordinate, with an approximate penta­gonal-bipyramidal configuration. The Ni atom is chelated by a dianionic penta­dentate Schiff base via the pyridine N atom, the two azomethine N atoms and the two sulfonyl O atoms. …”
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Synthesis, characterization and X-ray structures of 2,6-diacetylpyridinebis(benzenesulfonylhydrazide) and its zinc(II) complex by Yusnita, J., Ali, Hapipah Mohd, Robinson, W.T., Abdulla, M.A., Puvaneswary, S.

“…The metal center is seven-coordinate, with an approximate pentagonal bipyramidal configuration of the chelating ligand and two apically coordinated DMSO molecules.…”

Monoclinic modification of aquadi-n-butylbis(pyrazine-2-carboxylato-kappa N-2(1),O)tin(IV) by Ng, S.W.

“…Both molecules feature seven-coordinate Sn atoms in trans-C2SnN2O3 pentagonal-bipyramidal coordination environments. The carboxylate anions N,O-chelate to the Sn atom. …”

Decaaqua-1 kappa O-5,4 kappa O-5-bis(mu-nitrilotriacetate)-1:2 kappa O-5:N,O `,O `',O `'';3:4 kappa N-5,O,O `,O `':O `''-mu-oxido-2:3 kappa O-2:O-diperoxido-2 kappa O-2,O `;3 kappa... by Xie, X.H., Wang, B.M., Ng, S.W.

“…The titanium atom is N,O,O',O `'-chelated by the nitrilotriacetate and O,O'-chelated by the peroidxo group and is coordinated to the bridging O atom in an overall pentagonal-bipyramidal geometry. The O atom of one of the carboxylate -CO2 groups binds to the water-coordinated Cu atom, whose coordination polyhedron is an elongated octahedron. …”

Catena-Poly[[[bis(methanol-kappa O)lead(II)]-mu-N `-[1-(pyridin-2-yl-kappa N)ethylidene]isonicotinohydrazidato-kappa N-3 `,O:N-1] perchlorate] by Shahverdizadeh, G.H., Tiekink, E.R.T., Mirtamizdoust, B.

“…The Pb-II atom is seven-coordinated within an N3O3 donor set and a lone pair of electrons, which defines a Psi-pentagonal-bipyramidal coordination geometry with the pyridine N and lone pair in axial positions. …”