Table 1 Monocarboxylic acid products of the NiS-catalyzed reaction of acetylene with carbon monoxide.

From: Unsaturated C3,5,7,9-Monocarboxylic Acids by Aqueous, One-Pot Carbon Fixation: Possible Relevance for the Origin of Life

run

a

b

c

d

e

f

mmol NiS

1

1

0.5

0.5

0

0

mmol Ni(OH)2 (α or β)

0

0

0.5(α)

0.5(β)

1(α)

1(β)

end-pH

8.8

6.7

8.3

8.9

8.0

9.8

C 3 -acids (μM)

C2H3-COOH

3884

5822

3318

6675

250

243

C2H5-COOH

7132

1069

461

7391

510

171

ΣC3

11016

6891

3779

14066

760

414

C 5 -acids (μM)

ΣC4H5-COOH

466

1597

970

1463

53

0

ΣC4H7-COOH

7498

2641

1390

7269

11

0

C4H9-COOH

309

32

11

363

0

0

ΣC5

8273

4270

2371

9095

64

0

C 7 -acids (μM)

ΣC6H5,7-COOH

63

30

31

61

0

0

ΣC6H9-COOH

320

148

69

246

0

0

ΣC6H11-COOH

52

42

6

96

0

0

ΣC7

435

220

106

403

0

0

C 9 -acids (μM)

ΣC6H5-C2H2,4-COOH

1.8

4.4

3.1

1.5

0

0

C8H11-COOH

0.6

0.8

0.1

0

0

0

ΣC8H13-COOH

4.6

1.3

3.6

5.9

0

0

C8H15-COOH

3.9

0.4

0.4

3.7

0

0

ΣC9

10.9

6.9

7.2

11.1

0

0

ΣC 3 –C 9

19735

11388

6263

23575

824

414

  1. Reactions were carried out in 125 ml serum bottles with 5 ml aqueous liquid phase for 7 days at 105 °C; Products were identified by GC-MS as tert-butyldimethylsilyl derivatives.
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