Multicomponent Polyanions. VI. The Molecular and Crystal Structure of Na4H2Mo5P2O23(H2O)10, a Compound Containing Sodium-coordinated Dihydrogenpentamolybdodiphosphate Anions.

HEDMAN, BRITT; Malmros, Gunnar; Kenne, Lennart; Pilotti, Åke; Svensson, Sigfrid; Swahn, Carl‐Gunnar

doi:10.3891/acta.chem.scand.27-3335

Cited by 48 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The distances across the ring lie in the range 5.440--5.556 /~,. As can be seen from Table 4, the distances correspond more closely to the values found in (B) than to those of the H2MosP204~ anion in Na4H2MosP2023(H20)10 (Hedman, 1973).…”

Section: Description and Discussion Of The Structuresupporting

confidence: 50%

Multicomponent polyanions. 16. The molecular and crystal structure of Na₆Mo₅P₂O₂₃(H₂O)₁₄, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Hedman¹

1977

Acta Crystallogr Sect B

View full text Add to dashboard Cite

The crystal structure of Na6MosP2023(H20)I 4 has been determined from three-dimensional X-ray diffraction data collected with a Pailred diffractometer using Mo Ka radiation. The crystals are orthorhombic with space group P2~212 ~, cell dimensions a = 15.8304 (9), b = 19.876 (1), c = 10.6828 (6) A and Z = 4. Full-matrix least-squares refinements of positional and anisotropic thermal parameters based on 6171 independent reflexions resulted in a final R value of 0.024. The MosP206f anion consists of a ring formed by five MoO 6 octahedra with one PO4 tetrahedron attached to each side of the ring. The Mo-Mo distances vary between 3.355 and 3.377 A for edge-sharing octahedra and the distance is 3.6604 (4) ,h, when a corner is shared. In each octahedron the Mo-O distances are distributed with two distances in each of the three ranges 1.70-1.73, 1.90-1-95 and 2.17-2.39 A depending on coordination number. The P-O distances vary between 1.50 and 1.57 A. The anions are held together in a three-dimensional framework by O-Na-O and O-Na-H20-Na-O linkages as well as by hydrogen bonds. Four of the Na ions are surrounded by six, and two Na ions by five, anion O or water O atoms, in distorted octahedral, trigonal prismatic and square pyramidal arrangements. The Na-O distances are in the range 2.32-2.83 A.

show abstract

Section: Description and Discussion Of The Structuresupporting

confidence: 50%

Multicomponent polyanions. 16. The molecular and crystal structure of Na₆Mo₅P₂O₂₃(H₂O)₁₄, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Hedman¹

1977

Acta Crystallogr Sect B

View full text Add to dashboard Cite

show abstract

“…(Hedman, 1977a;Hedman, 1973). For the HMosP20523 anion the P-OP1 and P-OP2 distances are 1.510(4) and 1.556(4) A respectively.…”

Section: Description and Discussion Of The Structurementioning

confidence: 98%

“…Cross distances within the ring lie in the range 5.44-5.61 A. Apart from the H atoms the anion has the same structural arrangement as the MosP2062~ - (Strandberg, 1973;Hedman 1977a) and HEMOsP20~- (Hedman, 1973) anions. As can be seen from the comparison of their Mo-Mo, Mo-P and P-P distances given in Table 3, no radical change is induced in the structure by protonation/deprotonation.…”

Section: Description and Discussion Of The Structurementioning

confidence: 99%

Multicomponent polyanions. 19. The molecular and crystal structure of Na5HMo5P2O23(H2O)11, a superstructure with sodium-coordinated monohydrogenpentamolybdodiphosphate anions

Hedman¹,

Strandberg²

1979

Acta Crystallogr Sect B

View full text Add to dashboard Cite

The crystal structure of NasHMosP2023(H/O)lI has been determined from three-dimensional X-ray diffraction data collected with a Pailred diffractometer using Mo Ktt radiation. The crystals are triclinic, Pi, with four formula units in a cell of dimensions a = 19.470 (5), b = 20.865 (5), c = 8.352 (2) A, a = 70.10(1), ,8 = 99.86(1) and y = 110.63(3) ° . The structure contains HMo5P20~3 anions consisting of a ring of five MoO 6 octahedra with two PO 4 tetrahedra, one attached to each side of the ring. In the anion, which is a member of a series of protonated pentamolybdodiphosphate anions, the H atom is bonded to one of the unshared phosphate oxygens. The Na ÷ ions are directly coordinated to the anions and join these in a three-dimensional framework through O--Na-O and O-Na-H20-Na-O bridges. The coordination of anion and water oxygens around Na + is octahedral, square pyramidal or irregularly sevenfold. Because of systematic vacancies at the site of one of the Na + ions, accompanied by a change in water positions, the structure is a superstructure containing a subcell with b halved (10.432 /k). An 'average' structure based on this subcell has been refined with fuU-matrix least-squares refinement methods. The final R value, based on 6182 independent reflexions, is 0.036.

show abstract

“…Mo (1) o ( (8) 104.66 (9) 72.31 (6) 77.76 (6) Mo(1)--Mo (2) pounds, with increasing distances for increasing coordination number (CN) of the O atom (Hedman, 1973;Strandberg, 1975) (see Table 4 In the chelate, three puckered five-membered rings,…”

Section: Distances (A) and Bond Angles (O) Within The Moo 6 Octahedramentioning

confidence: 99%

“…On one of these O atoms the H atom from the OH group has remained and constitutes the proton of the complex. It is unusual for MoO 6 octahedra to share faces (compared with edge or corner sharing) and this has previously been reported only in the structures of (NH4)2H6(CeMo12042).12H20 (Dexter & Silverton, 1968) and (NH4)2[Mo2Os(C6H4Oz) 2] (Atovmyan, Tkachev & Shishova, 1972 (2) 107.98 (7) Mo(1)--O(6)--Mo (2) 78.89 (5) Mo(1)--O(8)--Mo (2) 94.67 (5) 0 (1) 0(2) 0 (3) 0 (6) 0 (7) 0 (8) (8) 104.66 (9) 72.31 (6) 77.76 (6) Mo(1)--Mo (2) pounds, with increasing distances for increasing coordination number (CN) of the O atom (Hedman, 1973;Strandberg, 1975) (see Table 4). Thus the mean Mo-O distances are 1.71 A (CN 1), 1.94 A (CN 2)and 2.…”

Section: Structure Determination and Refinementmentioning

confidence: 99%

Multicomponent polyanions. 15. The molecular and crystal structure of Na[Mo₂O₅{O₃(OH)C₆H₈(OH)₂}].2H₂O, a protonized mannitolatodimolybdate complex

Hedman¹

1977

Acta Crystallogr B Struct Sci

View full text Add to dashboard Cite

The crystal structure of Na[Mo205 {O3(OH)C6Hs(OH)2}]. 2H20 has been determined and refined from threedimensional X-ray diffraction data collected using a Pailred linear diffractometer. The crystals are monoclinic, space group P2~, with cell dimensions a = 12.2342 (6), b = 6.9008 (4), c = 8.3845 (5) A and fl = 99.740 (6)°; the unit cell contains two formula units. Full matrix least-squares refinement based on 4327 independent reflexions resulted in a final R value of 0.023. Positional and thermal parameters for all H atoms were included in the refinements. The [Mo2Os{O3(OH)C6Hs(OH)2}]-anion, which is a complex formed by H ÷, MoO42-and o-mannitol [C6H8(OH)6], consists of two MoO 6 octahedra sharing a face, with four O atoms donated by the mannitolato chain (which acts as a tetradentate ligand). On one of these O atoms, the H atom from the OH group remains and constitutes the proton of the complex. The Mo-Mo distance is 3.1435 (3) A, and the Mo-O distances fall into one of four ranges with mean values of 1.71, 1.94, 2.14 and 2-47 A, depending on the coordination number. The anions are hydrogen-bonded by the proton as well as by one of the two water molecules to form layers parallel to (100). The layers are strengthened by Na + ions, which are octahedrally coordinated by O atoms from different anions and water molecules. Hydrogen bonds between the second water molecule and an OH group of the uncoordinated part of the mannitolato chain form a helix along [010l holding the layers together.

show abstract

Multicomponent Polyanions. VI. The Molecular and Crystal Structure of Na4H2Mo5P2O23(H2O)10, a Compound Containing Sodium-coordinated Dihydrogenpentamolybdodiphosphate Anions.

Cited by 48 publications

References 0 publications

Multicomponent polyanions. 16. The molecular and crystal structure of Na₆Mo₅P₂O₂₃(H₂O)₁₄, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Multicomponent polyanions. 16. The molecular and crystal structure of Na₆Mo₅P₂O₂₃(H₂O)₁₄, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Multicomponent polyanions. 19. The molecular and crystal structure of Na5HMo5P2O23(H2O)11, a superstructure with sodium-coordinated monohydrogenpentamolybdodiphosphate anions

Multicomponent polyanions. 15. The molecular and crystal structure of Na[Mo₂O₅{O₃(OH)C₆H₈(OH)₂}].2H₂O, a protonized mannitolatodimolybdate complex

Contact Info

Product

Resources

About

Multicomponent Polyanions. VI. The Molecular and Crystal Structure of Na4H2Mo5P2O23(H2O)10, a Compound Containing Sodium-coordinated Dihydrogenpentamolybdodiphosphate Anions.

Cited by 48 publications

References 0 publications

Multicomponent polyanions. 16. The molecular and crystal structure of Na6Mo5P2O23(H2O)14, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Multicomponent polyanions. 16. The molecular and crystal structure of Na6Mo5P2O23(H2O)14, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Multicomponent polyanions. 19. The molecular and crystal structure of Na5HMo5P2O23(H2O)11, a superstructure with sodium-coordinated monohydrogenpentamolybdodiphosphate anions

Multicomponent polyanions. 15. The molecular and crystal structure of Na[Mo2O5{O3(OH)C6H8(OH)2}].2H2O, a protonized mannitolatodimolybdate complex

Contact Info

Product

Resources

About

Multicomponent polyanions. 16. The molecular and crystal structure of Na₆Mo₅P₂O₂₃(H₂O)₁₄, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Multicomponent polyanions. 16. The molecular and crystal structure of Na₆Mo₅P₂O₂₃(H₂O)₁₄, a compound containing sodium-coordinated pentamolybdodiphosphate anions

Multicomponent polyanions. 15. The molecular and crystal structure of Na[Mo₂O₅{O₃(OH)C₆H₈(OH)₂}].2H₂O, a protonized mannitolatodimolybdate complex