Hückel’s rule

section h-h h-h

section s-s s-s

Debye Hückel′s limiting equation

Hückel’s molecular orbit

CARPENTER’S RULE; RULE

SⅠSⅡSⅢ syndrome

~1H-~1H COSY

~1H-~1H NOESY

1H 1H COSY

1H-1H COSY (Correlated 2D spectroscopy)

1H-1H COSYLR

2D 1H-1H COSY spectroscopy

Activation H-H bond

activity in lower H 2S content

AuHS(H 2S) 0 3

calcium silicate hydrate gel C-S-H

calcium silicate hydrate(C-S-H)gel

calcium-silicate-hydrate C-S-H

C-S-H gel