Germany gifts

In this stage of the investigation, poly(methyl methacrylates) (PMMAs) were selected as the polymeric probes of intermediate polarity. Polymers of medium broad molar mass distribution and of low tacticity (14) were a gift of Dr. W. Wunderlich of Rohm Co., Darmstadt, Germany. Their molar masses ranged from 1.6 X 10" to 6.13 X 10 g-mol. For some comparative tests, narrow polystyrene standards from Pressure Co. (Pittsburgh, PA) were used. 

Both 2,2-bis(4-hydroxyphenyl)propane (BPA, bisphenol-A) and 2,2-bis(4-hydroxyphenyl)heptane (BP-5) were a gift from Dr M. Metzler (Kaiserlautern, Germany). Mono-, di-, tri- and tetrachlorinated BPA were a gift from Dr J.L. Vilchez (Granada, Spain). 

Blockcopolymers were a gift from Laschewsky and Ott FIfAPR. Golm, Germany... 

Tetraethoxysilane (TES 28 SQ) and aqueous ammonia (reagent grade, 32 wt%) were a gift from Merck KGaA, Darmstadt, Germany. 2-propanol (99+ %), n-dodecylamine (98 %) and n-hexadecylamine (90 %) were purchased from Aldrich, Steinheim, Germany. 

The copolymer was a gift of Bayer AG, Leverkusen, Germany it contains 0.75 mmol of hydroxy groups per g of polymer. 

According to ref. 3, nonacarbonyldiiron [Fe2(CO)g] was synthesized by photochemical dimerization of pentacarbonyliron [Fe(CO)s] in a mixture of glacial acetic acid and acetic acid anhydride (10 1) at room temperature employing a Dema irradiation apparatus with a Philips HPK 125 W or TQ 150 W medium pressure mercury lamp. The material should be stored at -25°C in a freezer and handled under an atmosphere of argon. Pentacarbonyliron [Fe(CO)s] was a gift from BASF AG, Germany and was used without further purification. 

With our gift of hindsight, many of Fritz Haber s passions and choices—especially his devotion to Germany—seem foolish and shortsighted. One aspect of his work seems downright macabre. 

Hydroxy-4,5-dimethyl-2(5H)-fiiranone (Sotolon), 4-hydroxy-2,5-dimethyl-3(2H)-furanone (Furaneol) and 2-hydroxy-3-methyl-2-cyclopenten-l-one (Cyclotene) were from Aldrich (Steinheim, Germany). 2-Acetyltetrahydropyridine and 2-acetyl-1-pyrroline were synthesized as previously described (8). 2-Hydroxy-3,4-dimethyl-2-cyclopenten-l-one was a gift from Dr. I. Blank (Nestle, Vers-chez-les-blanc, Switzerland). 

BChE (butyrylcholinesterase), from human serum, kind gift from Roche Diagnostics (Mannheim, Germany). 

As a boy, Willstatter proved to be a gifted student and tried to attend the best schools in Germany. But since he was a Jew, he was denied admission and was forced to attend public school. After graduation he entered the University of Munich, where he established himself in the scientific community. 

All chemicals were obtained from Sigma Chemie (Deisenhofen/Germany). L-aminocamitine was a gift from Sigma Tau (Rom/Italy). [ C]-camitine was obtained from NEN Life Science Products (Koln/Germany). All chemicals were reagent grade purity. 

This work was supported in part by the Minerva Foundation, Munich, West Germany. Antibodies against CFia and P were a gift from Dr. S. Gepshtein against CF17 and from Dr. R. Nechustai and against CFxC- from Dr. N. Nelson. 

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