Unusual band-filling and counterion ordering effects in a phthalocyanine molecular metal. Single crystal studies of Ni(Pc) (C104)y

M. Almeida, Mercouri G Kanatzidis, L. M. Tonge, Tobin J Marks, H. O. Marcy, W. J. McCarthy, C. R. Kannewurf

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The phthalocyanine molecular metal Ni(Pc) (C104)y, y=0.39-0.47 for most crystals, has been synthesized by electrocrystallization techniques. The structure of a crystal with y=0.42 consists of staggered (39.5°) Ni(Pc)+0.42 units stacked at 3.233(1) Å separations and disordered, off-axis C10- 4 ions. At lower temperatures, the C10- 4 ions undergo a transition to an ordered arrangement. At 300°K, σ{norm of matrix}=700±200Ω-1 cm-1 with metal-like (dσ/dT4 ordering rather than macroscopic fracturing. Thermoelectric power data are also metal-like (S≈T) with no evidence of the aforementioned discontinuities. Room temperature values of S=20-35 μVK-1 are in accord with the relatively high degree of Ni(Pc) partial oxidation. Polarized single crystal reflectance data reveal a plasma edge, the high energy of which is also explicable in terms of the relatively high degree of partial oxidation. Analysis of the thermoelectric power and optical data yields, in both cases, a tight-binding bandwidth of ca. 1.5 eV.

Original languageEnglish
Pages (from-to)457-461
Number of pages5
JournalSolid State Communications
Volume63
Issue number6
DOIs
Publication statusPublished - 1987

Fingerprint

Metals
Thermoelectric power
Single crystals
single crystals
metals
Ions
Oxidation
Crystals
oxidation
fracturing
norms
crystals
discontinuity
ions
bandwidth
reflectance
Plasmas
Bandwidth
Temperature
room temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Unusual band-filling and counterion ordering effects in a phthalocyanine molecular metal. Single crystal studies of Ni(Pc) (C104)y . / Almeida, M.; Kanatzidis, Mercouri G; Tonge, L. M.; Marks, Tobin J; Marcy, H. O.; McCarthy, W. J.; Kannewurf, C. R.

In: Solid State Communications, Vol. 63, No. 6, 1987, p. 457-461.

Research output: Contribution to journalArticle

@article{b456c4a404de44bf9260f1299fd981cd,
title = "Unusual band-filling and counterion ordering effects in a phthalocyanine molecular metal. Single crystal studies of Ni(Pc) (C104)y",
abstract = "The phthalocyanine molecular metal Ni(Pc) (C104)y, y=0.39-0.47 for most crystals, has been synthesized by electrocrystallization techniques. The structure of a crystal with y=0.42 consists of staggered (39.5°) Ni(Pc)+0.42 units stacked at 3.233(1) {\AA} separations and disordered, off-axis C10- 4 ions. At lower temperatures, the C10- 4 ions undergo a transition to an ordered arrangement. At 300°K, σ{norm of matrix}=700±200Ω-1 cm-1 with metal-like (dσ/dT4 ordering rather than macroscopic fracturing. Thermoelectric power data are also metal-like (S≈T) with no evidence of the aforementioned discontinuities. Room temperature values of S=20-35 μVK-1 are in accord with the relatively high degree of Ni(Pc)+ρ partial oxidation. Polarized single crystal reflectance data reveal a plasma edge, the high energy of which is also explicable in terms of the relatively high degree of partial oxidation. Analysis of the thermoelectric power and optical data yields, in both cases, a tight-binding bandwidth of ca. 1.5 eV.",
author = "M. Almeida and Kanatzidis, {Mercouri G} and Tonge, {L. M.} and Marks, {Tobin J} and Marcy, {H. O.} and McCarthy, {W. J.} and Kannewurf, {C. R.}",
year = "1987",
doi = "10.1016/0038-1098(87)90270-5",
language = "English",
volume = "63",
pages = "457--461",
journal = "Solid State Communications",
issn = "0038-1098",
publisher = "Elsevier Limited",
number = "6",

}

TY - JOUR

T1 - Unusual band-filling and counterion ordering effects in a phthalocyanine molecular metal. Single crystal studies of Ni(Pc) (C104)y

AU - Almeida, M.

AU - Kanatzidis, Mercouri G

AU - Tonge, L. M.

AU - Marks, Tobin J

AU - Marcy, H. O.

AU - McCarthy, W. J.

AU - Kannewurf, C. R.

PY - 1987

Y1 - 1987

N2 - The phthalocyanine molecular metal Ni(Pc) (C104)y, y=0.39-0.47 for most crystals, has been synthesized by electrocrystallization techniques. The structure of a crystal with y=0.42 consists of staggered (39.5°) Ni(Pc)+0.42 units stacked at 3.233(1) Å separations and disordered, off-axis C10- 4 ions. At lower temperatures, the C10- 4 ions undergo a transition to an ordered arrangement. At 300°K, σ{norm of matrix}=700±200Ω-1 cm-1 with metal-like (dσ/dT4 ordering rather than macroscopic fracturing. Thermoelectric power data are also metal-like (S≈T) with no evidence of the aforementioned discontinuities. Room temperature values of S=20-35 μVK-1 are in accord with the relatively high degree of Ni(Pc)+ρ partial oxidation. Polarized single crystal reflectance data reveal a plasma edge, the high energy of which is also explicable in terms of the relatively high degree of partial oxidation. Analysis of the thermoelectric power and optical data yields, in both cases, a tight-binding bandwidth of ca. 1.5 eV.

AB - The phthalocyanine molecular metal Ni(Pc) (C104)y, y=0.39-0.47 for most crystals, has been synthesized by electrocrystallization techniques. The structure of a crystal with y=0.42 consists of staggered (39.5°) Ni(Pc)+0.42 units stacked at 3.233(1) Å separations and disordered, off-axis C10- 4 ions. At lower temperatures, the C10- 4 ions undergo a transition to an ordered arrangement. At 300°K, σ{norm of matrix}=700±200Ω-1 cm-1 with metal-like (dσ/dT4 ordering rather than macroscopic fracturing. Thermoelectric power data are also metal-like (S≈T) with no evidence of the aforementioned discontinuities. Room temperature values of S=20-35 μVK-1 are in accord with the relatively high degree of Ni(Pc)+ρ partial oxidation. Polarized single crystal reflectance data reveal a plasma edge, the high energy of which is also explicable in terms of the relatively high degree of partial oxidation. Analysis of the thermoelectric power and optical data yields, in both cases, a tight-binding bandwidth of ca. 1.5 eV.

UR - http://www.scopus.com/inward/record.url?scp=0023397431&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023397431&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(87)90270-5

DO - 10.1016/0038-1098(87)90270-5

M3 - Article

VL - 63

SP - 457

EP - 461

JO - Solid State Communications

JF - Solid State Communications

SN - 0038-1098

IS - 6

ER -