Structural studies on clathro chelate complexes. I. Trigonal-prismatic coordination of d8 nickel(II) in crystalline [fluoroborotris(2-aldoximo-6-pyridyl)phosphine]nickel(II) tetrafluoroborate

The CdII atom in the title complex, [Cd(C8H5O3)2(C12H8N2)(H2O)], is coordinated by three O atoms of two formylbenzoate ligands, two N atoms of a 1,10-phenanthroline ligand and one water molecule, giving rise to a trigonal–prismatic coordination geometry. Adjacent complex molecules are linked into a two-dimensional layer structure via hydrogen-bonding interactions.

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Novel three-dimensional coordination polymers of lanthanides with sulfate and oxydiacetic acid

Acta Crystallographica Section C Crystal Structure Communications ◽

10.1107/s0108270113031806 ◽

2013 ◽

Vol 69 (12) ◽

pp. 1503-1508 ◽

Cited By ~ 1

Author(s):

Thazhe Kootteri Prasad ◽

M. V. Rajasekharan

Keyword(s):

Crystal Structure ◽

Coordination Polymers ◽

Three Dimensional ◽

Lanthanide Oxides ◽

Coordination Polyhedra ◽

Hydrothermal Reactions ◽

Lanthanide Cations ◽

Trigonal Prismatic Coordination ◽

Oxydiacetic Acid ◽

Trigonal Prismatic

Three three-dimensional coordination polymers,viz.poly[[diaqua-μ4-oxydiacetato-di-μ4-sulfato-dipraseodymium(III)] hemihydrate], [Pr2(C4H4O5)(SO4)2(H2O)2]·0.5H2O, (I), poly[[diaquadi-μ3-oxydiacetato-μ3-sulfato-dineodymium(III)] 1.32-hydrate], [Nd2(C4H4O5)2(SO4)(H2O)2]·1.32H2O, (II), and poly[[diaquadi-μ3-oxydiacetato-μ3-sulfato-disamarium(III)] 1.32-hydrate], [Sm2(C4H4O5)2(SO4)(H2O)2]·1.32H2O, (III), were obtained by hydrothermal reactions of the respective lanthanide oxides and ZnSO4with oxydiacetic acid (odaH2). The Nd3+and Sm3+compounds form isomorphous crystal structures in which the lanthanide cations are nine-coordinate, having a tricapped trigonal prismatic coordination. The Pr3+compound has an entirely different crystal structure in which two types of coordination polyhedra are observed,viz.nine-coordinate (trigonal prism) and ten-coordinate (bicapped square antiprism). The sulfate anions show various coordination modes, one of which has only rarely been observed crystallographically to date.

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Trigonal-prismatic coordination. Complexes of intermediate geometry

Journal of the American Chemical Society ◽

10.1021/ja00724a060 ◽

1970 ◽

Vol 92 (21) ◽

pp. 6365-6366 ◽

Cited By ~ 19

Author(s):

Everly B. Fleischer ◽

A. E. Gebala ◽

P. A. Tasker

Keyword(s):

Coordination Complexes ◽

Trigonal Prismatic Coordination ◽

Trigonal Prismatic

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Ternary Thallides REMgTl (Re = Y, La – Nd, Sm, Gd – Tm, Lu)

Zeitschrift für Naturforschung B ◽

10.1515/znb-2005-0305 ◽

2005 ◽

Vol 60 (3) ◽

pp. 265-270 ◽

Cited By ~ 9

Author(s):

Rainer Kraft ◽

Rainer Pöttgen

Keyword(s):

Rare Earth ◽

Single Crystal ◽

Rare Earth Metal ◽

High Frequency ◽

Three Dimensional ◽

Earth Metal ◽

X Ray ◽

Sample Chamber ◽

Trigonal Prismatic Coordination ◽

Trigonal Prismatic

The rare earth metal (RE)-magnesium-thallides REMgTl (RE = Y, La-Nd, Sm, Gd-Tm, Lu) were prepared from the elements in sealed tantalum tubes in a water-cooled sample chamber of a high-frequency furnace. The thallides were characterized through their X-ray powder patterns. They crystallize with the hexagonal ZrNiAl type structure, space group P62m, with three formula units per cell. Four structures were refined from X-ray single crystal diffractometer data: α = 750.5(1), c = 459.85(8) pm, wR2 = 0.0491, 364 F2 values, 14 variables for YMgTl; α = 781.3(1), c = 477.84(8) pm, wR2 = 0.0640, BASF = 0.09(2), 425 F2 values, 15 variables for LaMgTl; α = 774.1(1), c = 473.75(7) pm, wR2 = 0.0405, 295 F2 values, 14 variables for CeMgTl; a = 760.3(1), c = 465.93(8) pm, wR2 = 0.0262, 287 F2 values, 14 variables for SmMgTl. The PrMgTl, NdMgTl, GdMgTl, TbMgTl, and DyMgTl structures have been analyzed using the Rietveld technique. The REMgTl structures contain two cystallographically independent thallium sites, both with tri-capped trigonal prismatic coordination: Tl1Mg3RE6 and Tl2Mg6RE3. Together the magnesium and thallium atoms form three-dimensional [MgTl] networks with Mg-Mg distances of 327 and Mg-Tl distances in the range 299 - 303 pm (data for CeMgTl)

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Sr4Pt10In21 – the first representative of the Ho4Ni10In21 type with a divalent cation

Zeitschrift für Naturforschung B ◽

10.1515/znb-2019-0054 ◽

2019 ◽

Vol 74 (5) ◽

pp. 443-449 ◽

Cited By ~ 2

Author(s):

Birgit Heying ◽

Jutta Kösters ◽

Rainer Pöttgen

Keyword(s):

Single Crystal ◽

Single Crystals ◽

Glassy Carbon ◽

Divalent Cation ◽

High Frequency ◽

Three Dimensional ◽

X Ray ◽

Trigonal Prismatic Coordination ◽

Trigonal Prismatic

AbstractRod-shaped single crystals of Sr4Pt10In21were prepared from the elements in glassy-carbon crucibles in a high-frequency furnace. The structure of Sr4Pt10In21was refined from single-crystal X-ray diffractometer data:C2/m, Ho4Ni10Ga21type,a = 2322.62(7),b = 450.27(2),c = 1958.09(7) pm,β = 133.191(3)°,wR = 0.0464, 3200F2values and 107 variables. The three-dimensional [Pt10In21]δ−polyanionic network is stabilized through substantial Pt–In (269–313 pm Pt–In) and In–In (294–362 pm In–In) bonding. All platinum atoms have slightly distorted tri-capped trigonal prismatic coordination and the two crystallographically independent strontium atoms are located in penta-capped pentagonal prisms.

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