Preparation And Properties of The Nitrido-bridged Osmium(IV) Binuclear Complexes [OSIV2N(NH3)10-nCln]Cl5-n(n = 2, 3)

Sook hui Kim; Bruce A. Mover; Sarah Azan; Gilbert M. Brown; Ada L. Olins; David P. Allison

doi:10.1021/ic00325a022

Preparation And Properties of The Nitrido-bridged Osmium(IV) Binuclear Complexes [OS^IV₂N(NH₃)_10-nCl_n]Cl_5-n(n = 2, 3)

Sook hui Kim
, Bruce A. Mover
, Sarah Azan
, Gilbert M. Brown
, Ada L. Olins
, David P. Allison

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

13 Scopus citations

Abstract

The nitrido-bridged osmium(IV) binuclear complexes [0s₂N(NH3)₈Cl₂]Cl3-2H₂0 (I) and [0s₂N(NH3)₇Cl3]Cl2*H₂0 (II) have been shown to be products of the ammonolysis of sodium hexachloroosmate(IV) (Na₂[OsCl₆]) in aqueous ammonia at elevated temperatures. Spectral (infrared and UV-vis) and electrochemical properties of the complexes have been explored. In aqueous solution, I and II undergo aquation reactions involving the chloro ligands, and the resulting aqua complexes of I and II exhibit respectively two and three ionizable protons with pK₂values in the range 3.6-7.3. In purified form, the complexes I and II plus their aquated derivatives were found to be ineffective as DNA-selective, electron-dense stains for electron microscopy, whereas effective staining was observed with unpurified mixtures.

Original language	English
Pages (from-to)	4648-4650
Number of pages	3
Journal	Inorganic Chemistry
Volume	28
Issue number	26
DOIs	https://doi.org/10.1021/ic00325a022
State	Published - Dec 1 1989

Access to Document

10.1021/ic00325a022

Cite this

@article{3da722d4265b485f90aad60a22a180ea,

title = "Preparation And Properties of The Nitrido-bridged Osmium(IV) Binuclear Complexes [OSIV2N(NH3)10-nCln]Cl5-n(n = 2, 3)",

abstract = "The nitrido-bridged osmium(IV) binuclear complexes [0s2N(NH3)8Cl2]Cl3-2H20 (I) and [0s2N(NH3)7Cl3]Cl2*H20 (II) have been shown to be products of the ammonolysis of sodium hexachloroosmate(IV) (Na2[OsCl6]) in aqueous ammonia at elevated temperatures. Spectral (infrared and UV-vis) and electrochemical properties of the complexes have been explored. In aqueous solution, I and II undergo aquation reactions involving the chloro ligands, and the resulting aqua complexes of I and II exhibit respectively two and three ionizable protons with pK2values in the range 3.6-7.3. In purified form, the complexes I and II plus their aquated derivatives were found to be ineffective as DNA-selective, electron-dense stains for electron microscopy, whereas effective staining was observed with unpurified mixtures.",

author = "Kim, \{Sook hui\} and Mover, \{Bruce A.\} and Sarah Azan and Brown, \{Gilbert M.\} and Olins, \{Ada L.\} and Allison, \{David P.\}",

year = "1989",

month = dec,

day = "1",

doi = "10.1021/ic00325a022",

language = "English",

volume = "28",

pages = "4648--4650",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "26",

}

TY - JOUR

T1 - Preparation And Properties of The Nitrido-bridged Osmium(IV) Binuclear Complexes [OSIV2N(NH3)10-nCln]Cl5-n(n = 2, 3)

AU - Kim, Sook hui

AU - Mover, Bruce A.

AU - Azan, Sarah

AU - Brown, Gilbert M.

AU - Olins, Ada L.

AU - Allison, David P.

PY - 1989/12/1

Y1 - 1989/12/1

N2 - The nitrido-bridged osmium(IV) binuclear complexes [0s2N(NH3)8Cl2]Cl3-2H20 (I) and [0s2N(NH3)7Cl3]Cl2*H20 (II) have been shown to be products of the ammonolysis of sodium hexachloroosmate(IV) (Na2[OsCl6]) in aqueous ammonia at elevated temperatures. Spectral (infrared and UV-vis) and electrochemical properties of the complexes have been explored. In aqueous solution, I and II undergo aquation reactions involving the chloro ligands, and the resulting aqua complexes of I and II exhibit respectively two and three ionizable protons with pK2values in the range 3.6-7.3. In purified form, the complexes I and II plus their aquated derivatives were found to be ineffective as DNA-selective, electron-dense stains for electron microscopy, whereas effective staining was observed with unpurified mixtures.

AB - The nitrido-bridged osmium(IV) binuclear complexes [0s2N(NH3)8Cl2]Cl3-2H20 (I) and [0s2N(NH3)7Cl3]Cl2*H20 (II) have been shown to be products of the ammonolysis of sodium hexachloroosmate(IV) (Na2[OsCl6]) in aqueous ammonia at elevated temperatures. Spectral (infrared and UV-vis) and electrochemical properties of the complexes have been explored. In aqueous solution, I and II undergo aquation reactions involving the chloro ligands, and the resulting aqua complexes of I and II exhibit respectively two and three ionizable protons with pK2values in the range 3.6-7.3. In purified form, the complexes I and II plus their aquated derivatives were found to be ineffective as DNA-selective, electron-dense stains for electron microscopy, whereas effective staining was observed with unpurified mixtures.

UR - https://www.scopus.com/pages/publications/0011477382

U2 - 10.1021/ic00325a022

DO - 10.1021/ic00325a022

M3 - Article

AN - SCOPUS:0011477382

SN - 0020-1669

VL - 28

SP - 4648

EP - 4650

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 26

ER -

Preparation And Properties of The Nitrido-bridged Osmium(IV) Binuclear Complexes [OS^IV₂N(NH₃)_10-nCl_n]Cl_5-n(n = 2, 3)

Abstract

Access to Document

Other files and links

Fingerprint

Cite this