Universität zu Köln

Laussmann, Tim ORCID: 0000-0002-0180-3513, Grzesiak, Ireneus, Krest, Alexander, Stirnat, Kathrin, Meier-Giebing, Sigrid, Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 and Klein, Axel ORCID: 0000-0003-0093-9619 (2015). Copper thiocyanato complexes and cocaine - a case of 'black cocaine'. Drug Test. Anal., 7 (1). S. 56 - 65. HOBOKEN: WILEY. ISSN 1942-7611

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Abstract

The chemical composition of a black powder confiscated by German customs was elucidated. Black powders are occasionally used as a transporter' for cocaine and are obviously especially designed to cloak the presence of the drug. The material consisting of cocaine, copper, iron, thiocyanate, and graphite was approached by analytical tools and chemical modelling. Graphite is added to the material probably with the intention of masking the typical infrared (IR) fingerprints of cocaine and can be clearly detected by powder X-ray diffraction (XRD) and Raman spectroscopy. Cu2+ and NCS- ions, when carefully reacted with cocaine hydrochloride, form the novel compound (CocH)(2)[Cu(NCS)(4)] (CocH(+)=protonated cocaine), which has been characterised by single crystal XRD, IR, NMR, UV/Vis absorption and EPR spectroscopy. Based on some further experiments the assumed composition of the original black powder is discussed. Copyright (c) 2014 John Wiley & Sons, Ltd.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Laussmann, Tim UNSPECIFIED orcid.org/0000-0002-0180-3513 UNSPECIFIED Grzesiak, Ireneus UNSPECIFIED UNSPECIFIED UNSPECIFIED Krest, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Stirnat, Kathrin UNSPECIFIED UNSPECIFIED UNSPECIFIED Meier-Giebing, Sigrid UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED Klein, Axel UNSPECIFIED orcid.org/0000-0003-0093-9619 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-417545
DOI:	10.1002/dta.1658
Journal or Publication Title:	Drug Test. Anal.
Volume:	7
Number:	1
Page Range:	S. 56 - 65
Date:	2015
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1942-7611
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MERCURY(II) COORDINATION POLYMER; CRYSTAL-STRUCTURE; SPECTROPHOTOMETRIC DETERMINATION; MAGNETIC-PROPERTIES; BRIDGED COPPER(II); GRAPHITE POWDERS; ION-PAIR; EXTRACTION; LUMINESCENCE; SYSTEM Multiple languages Biochemical Research Methods; Chemistry, Analytical; Pharmacology & Pharmacy Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/41754