Photoluminescent chromium molybdate cluster coordinated with rare earth cations: Synthesis, structure, optical and magnetic properties

Dinesh Kumar; Shahab Ahmad; G. Vijaya Prakash; Kandalam V. Ramanujachary; Arunachalam Ramanan

doi:10.1039/c4ce00865k

Photoluminescent chromium molybdate cluster coordinated with rare earth cations: Synthesis, structure, optical and magnetic properties

Dinesh Kumar, Shahab Ahmad, G. Vijaya Prakash, Kandalam V. Ramanujachary, Arunachalam Ramanan

Chemistry

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The Anderson-Evans cluster, {CrMo₆O₂₄}^n-, exhibits ruby-like red emission. During our attempts to engineer new photoluminescent crystals using chromium molybdate as a molecular building block, we isolated four new rare-earth based chromium molybdates: [Gd(H ₂O)₇{CrMo₆(OH)₆O₁₈}] ·4H₂O, 1, (4-pycH)[Gd(H₂O)₄{CrMo ₆(OH)₆O₁₈}(4-pycH)]·5H₂O, 3, and (4-pycH)₂[Ln(H₂O)₆{CrMo₆(OH) ₆O₁₈}]·2H₂O, (Ln = Tb, 4 and Sm, 5; H4-pyc = 4-pyridine carboxylic acid and 4-pycH = 4-pyridinium carboxylate). All are nonmolecular solids characterized by extended 1-D or 2-D interactions between rare-earth ions and the chromium molybdate cluster. All solids showed intense room-temperature Cr³⁺ related red emission and also exhibited weak antiferromagnetism at low temperatures. This journal is

Original language	English (US)
Pages (from-to)	7097-7105
Number of pages	9
Journal	CrystEngComm
Volume	16
Issue number	30
DOIs	https://doi.org/10.1039/c4ce00865k
State	Published - Aug 14 2014

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1039/c4ce00865k

Cite this

@article{5ab772abff2140b1ae04cf3926d630ab,

title = "Photoluminescent chromium molybdate cluster coordinated with rare earth cations: Synthesis, structure, optical and magnetic properties",

abstract = "The Anderson-Evans cluster, {CrMo6O24}n-, exhibits ruby-like red emission. During our attempts to engineer new photoluminescent crystals using chromium molybdate as a molecular building block, we isolated four new rare-earth based chromium molybdates: [Gd(H 2O)7{CrMo6(OH)6O18}] ·4H2O, 1, (4-pycH)[Gd(H2O)4{CrMo 6(OH)6O18}(4-pycH)]·5H2O, 3, and (4-pycH)2[Ln(H2O)6{CrMo6(OH) 6O18}]·2H2O, (Ln = Tb, 4 and Sm, 5; H4-pyc = 4-pyridine carboxylic acid and 4-pycH = 4-pyridinium carboxylate). All are nonmolecular solids characterized by extended 1-D or 2-D interactions between rare-earth ions and the chromium molybdate cluster. All solids showed intense room-temperature Cr3+ related red emission and also exhibited weak antiferromagnetism at low temperatures. This journal is",

author = "Dinesh Kumar and Shahab Ahmad and Prakash, {G. Vijaya} and Ramanujachary, {Kandalam V.} and Arunachalam Ramanan",

year = "2014",

month = aug,

day = "14",

doi = "10.1039/c4ce00865k",

language = "English (US)",

volume = "16",

pages = "7097--7105",

journal = "CrystEngComm",

issn = "1466-8033",

publisher = "Royal Society of Chemistry",

number = "30",

}

TY - JOUR

T1 - Photoluminescent chromium molybdate cluster coordinated with rare earth cations

T2 - Synthesis, structure, optical and magnetic properties

AU - Kumar, Dinesh

AU - Ahmad, Shahab

AU - Prakash, G. Vijaya

AU - Ramanujachary, Kandalam V.

AU - Ramanan, Arunachalam

PY - 2014/8/14

Y1 - 2014/8/14

N2 - The Anderson-Evans cluster, {CrMo6O24}n-, exhibits ruby-like red emission. During our attempts to engineer new photoluminescent crystals using chromium molybdate as a molecular building block, we isolated four new rare-earth based chromium molybdates: [Gd(H 2O)7{CrMo6(OH)6O18}] ·4H2O, 1, (4-pycH)[Gd(H2O)4{CrMo 6(OH)6O18}(4-pycH)]·5H2O, 3, and (4-pycH)2[Ln(H2O)6{CrMo6(OH) 6O18}]·2H2O, (Ln = Tb, 4 and Sm, 5; H4-pyc = 4-pyridine carboxylic acid and 4-pycH = 4-pyridinium carboxylate). All are nonmolecular solids characterized by extended 1-D or 2-D interactions between rare-earth ions and the chromium molybdate cluster. All solids showed intense room-temperature Cr3+ related red emission and also exhibited weak antiferromagnetism at low temperatures. This journal is

AB - The Anderson-Evans cluster, {CrMo6O24}n-, exhibits ruby-like red emission. During our attempts to engineer new photoluminescent crystals using chromium molybdate as a molecular building block, we isolated four new rare-earth based chromium molybdates: [Gd(H 2O)7{CrMo6(OH)6O18}] ·4H2O, 1, (4-pycH)[Gd(H2O)4{CrMo 6(OH)6O18}(4-pycH)]·5H2O, 3, and (4-pycH)2[Ln(H2O)6{CrMo6(OH) 6O18}]·2H2O, (Ln = Tb, 4 and Sm, 5; H4-pyc = 4-pyridine carboxylic acid and 4-pycH = 4-pyridinium carboxylate). All are nonmolecular solids characterized by extended 1-D or 2-D interactions between rare-earth ions and the chromium molybdate cluster. All solids showed intense room-temperature Cr3+ related red emission and also exhibited weak antiferromagnetism at low temperatures. This journal is

UR - http://www.scopus.com/inward/record.url?scp=84904106689&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904106689&partnerID=8YFLogxK

U2 - 10.1039/c4ce00865k

DO - 10.1039/c4ce00865k

M3 - Article

AN - SCOPUS:84904106689

SN - 1466-8033

VL - 16

SP - 7097

EP - 7105

JO - CrystEngComm

JF - CrystEngComm

IS - 30

ER -

Photoluminescent chromium molybdate cluster coordinated with rare earth cations: Synthesis, structure, optical and magnetic properties

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this