Luminescent gold and silver complexes with the monophosphane 1-(PPh 2)-2-Me-C2B10H10 and their conversion to gold micro- and superstructured materials

Olga Crespo; Carlos Díaz; Colm Odwyer; M. Concepción Gimeno; Antonio Laguna; Isaura Ospino; Maria Luisa Valenzuela

doi:10.1021/ic5005424

Luminescent gold and silver complexes with the monophosphane 1-(PPh ₂)-2-Me-C₂B₁₀H₁₀ and their conversion to gold micro- and superstructured materials

Olga Crespo
, Carlos Díaz
, Colm Odwyer
, M. Concepción Gimeno
, Antonio Laguna
, Isaura Ospino
, Maria Luisa Valenzuela

School of Chemistry

University of Zaragoza
Universidad de Chile
University of Limerick
Universidad Autónoma de Chile

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

Abstract

Gold and silver complexes containing the monophosphane 1-PPh ₂-2-Me-l,2-C₂B₁₀H₁₀ with different coordination numbers (2, 3) have been synthesized: [M(7,8-(PPh₂) ₂-C₂B₉H₁₀)(1-PPh₂-2-Me- C₂B₁₀H₁₀)] (M = Ag, Au) and [Au ₂(μ-1,n-C₂B₁₀H₁₀)(1-PPh ₂-2-Me-C₂B₁₀H₁₀)₂] (n = 2, 12). Solid-state pyrolysis of [AuCl(1-PPh₂-2-Me-C ₂B₁₀H₁₀)] and [Au₂(μ-1,12-C ₂B₁₀H₁₀)(1-PPh₂-2-Me-C ₂B₁₀H₁₀)₂] in air and of solutions of [AuCl(1-PPh₂-2-Me-C₂B₁₀H₁₀)] deposited on silicon and silica at 800 °C results in single-crystal Au, confirmed by diffraction and SEM-EDS. The morphology of the pyrolytic products depends on the thermolytic conditions, and different novel 3-D superstructures or microcrystals are possible. We also propose a mechanism for the thermal conversion of these precursors to structural crystalline and phase pure materials. The presence of the carborane monophosphane seems to originate quenching of the luminescence at room temperature in the complexes [Au ₂(μ-1,n-C₂B₁₀H₁₀)(1-PPh ₂-2-Me-C₂B₁₀H₁₀)₂], in comparison with other [Au₂(μ-1,n-C₂B₁₀H ₁₀)L₂] species (L = monophosphane).

Original language	English
Pages (from-to)	7260-7269
Number of pages	10
Journal	Inorganic Chemistry
Volume	53
Issue number	14
DOIs	https://doi.org/10.1021/ic5005424
Publication status	Published - 21 Jul 2014

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10.1021/ic5005424

https://hdl.handle.net/10468/6087Licence: CC BY-NC-ND

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@article{43964d4381d147e09a2d8a6a65d2bd46,

title = "Luminescent gold and silver complexes with the monophosphane 1-(PPh 2)-2-Me-C2B10H10 and their conversion to gold micro- and superstructured materials",

abstract = "Gold and silver complexes containing the monophosphane 1-PPh 2-2-Me-l,2-C2B10H10 with different coordination numbers (2, 3) have been synthesized: [M(7,8-(PPh2) 2-C2B9H10)(1-PPh2-2-Me- C2B10H10)] (M = Ag, Au) and [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2] (n = 2, 12). Solid-state pyrolysis of [AuCl(1-PPh2-2-Me-C 2B10H10)] and [Au2(μ-1,12-C 2B10H10)(1-PPh2-2-Me-C 2B10H10)2] in air and of solutions of [AuCl(1-PPh2-2-Me-C2B10H10)] deposited on silicon and silica at 800 °C results in single-crystal Au, confirmed by diffraction and SEM-EDS. The morphology of the pyrolytic products depends on the thermolytic conditions, and different novel 3-D superstructures or microcrystals are possible. We also propose a mechanism for the thermal conversion of these precursors to structural crystalline and phase pure materials. The presence of the carborane monophosphane seems to originate quenching of the luminescence at room temperature in the complexes [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2], in comparison with other [Au2(μ-1,n-C2B10H 10)L2] species (L = monophosphane).",

author = "Olga Crespo and Carlos D{\'i}az and Colm Odwyer and Gimeno, \{M. Concepci{\'o}n\} and Antonio Laguna and Isaura Ospino and Valenzuela, \{Maria Luisa\}",

year = "2014",

month = jul,

day = "21",

doi = "10.1021/ic5005424",

language = "English",

volume = "53",

pages = "7260--7269",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "14",

}

TY - JOUR

T1 - Luminescent gold and silver complexes with the monophosphane 1-(PPh 2)-2-Me-C2B10H10 and their conversion to gold micro- and superstructured materials

AU - Crespo, Olga

AU - Díaz, Carlos

AU - Odwyer, Colm

AU - Gimeno, M. Concepción

AU - Laguna, Antonio

AU - Ospino, Isaura

AU - Valenzuela, Maria Luisa

PY - 2014/7/21

Y1 - 2014/7/21

N2 - Gold and silver complexes containing the monophosphane 1-PPh 2-2-Me-l,2-C2B10H10 with different coordination numbers (2, 3) have been synthesized: [M(7,8-(PPh2) 2-C2B9H10)(1-PPh2-2-Me- C2B10H10)] (M = Ag, Au) and [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2] (n = 2, 12). Solid-state pyrolysis of [AuCl(1-PPh2-2-Me-C 2B10H10)] and [Au2(μ-1,12-C 2B10H10)(1-PPh2-2-Me-C 2B10H10)2] in air and of solutions of [AuCl(1-PPh2-2-Me-C2B10H10)] deposited on silicon and silica at 800 °C results in single-crystal Au, confirmed by diffraction and SEM-EDS. The morphology of the pyrolytic products depends on the thermolytic conditions, and different novel 3-D superstructures or microcrystals are possible. We also propose a mechanism for the thermal conversion of these precursors to structural crystalline and phase pure materials. The presence of the carborane monophosphane seems to originate quenching of the luminescence at room temperature in the complexes [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2], in comparison with other [Au2(μ-1,n-C2B10H 10)L2] species (L = monophosphane).

AB - Gold and silver complexes containing the monophosphane 1-PPh 2-2-Me-l,2-C2B10H10 with different coordination numbers (2, 3) have been synthesized: [M(7,8-(PPh2) 2-C2B9H10)(1-PPh2-2-Me- C2B10H10)] (M = Ag, Au) and [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2] (n = 2, 12). Solid-state pyrolysis of [AuCl(1-PPh2-2-Me-C 2B10H10)] and [Au2(μ-1,12-C 2B10H10)(1-PPh2-2-Me-C 2B10H10)2] in air and of solutions of [AuCl(1-PPh2-2-Me-C2B10H10)] deposited on silicon and silica at 800 °C results in single-crystal Au, confirmed by diffraction and SEM-EDS. The morphology of the pyrolytic products depends on the thermolytic conditions, and different novel 3-D superstructures or microcrystals are possible. We also propose a mechanism for the thermal conversion of these precursors to structural crystalline and phase pure materials. The presence of the carborane monophosphane seems to originate quenching of the luminescence at room temperature in the complexes [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2], in comparison with other [Au2(μ-1,n-C2B10H 10)L2] species (L = monophosphane).

UR - https://www.scopus.com/pages/publications/84904682669

U2 - 10.1021/ic5005424

DO - 10.1021/ic5005424

M3 - Article

AN - SCOPUS:84904682669

SN - 0020-1669

VL - 53

SP - 7260

EP - 7269

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 14

ER -

Luminescent gold and silver complexes with the monophosphane 1-(PPh ₂)-2-Me-C₂B₁₀H₁₀ and their conversion to gold micro- and superstructured materials

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