6 Group 13–15 Needle-Shaped Oligomers and Nanorods: Structures. . .
213
Fig. 6.6 Structure of needle-shaped heptamer on the example [HAlPSiMe 2 (C i PrMe 2 )] 7 [108]
(a) side view and (b) top view and (c) structure of the oxidized decamer [ClAlPO 3 Me] 10 [109].
Aluminum atoms are colored in pink, phosphorus in orange, silicon in yellow, chlorine in green,
oxygen in red, and carbon in gray. Hydrogen atoms are omitted for clarity
[HAlNCH 2 (1-Ad)] 7 was unsuccessful. Full substitution was not achieved, resulting
in compound [F 0.32 H 0.68 AlNCH 2 (1-Ad)] 7 [82].
The needle-shaped structure of oxidized decamer [ClAlPO 3 Me] 10 (Fig. 6.6c)
is also noteworthy [109], since it reflects the stability of needle-shaped structural
motif.
Needle-shaped heptamer with Ga 7 N 7 core [PhGaNMe] 7 was synthesized by
thermolysis of [Ph 2 GaNHMe] 2 and structurally characterized [110]. The reactivity
leading to tetrameric and heptameric Ga-N-based compounds with adamantanetype cores is presented in Scheme 6.6 [104]. Decomposition of adamantane-type
amido-imino compound [(GaPh) 7 (NHMe) 4 (NMe) 5 ] at 340 ◦ C leads to heptamer
[PhGaNMe] 7 , as indicated by chemical ionization mass spectrometry studies [104].
Computational studies of heptamer compounds [HAlNH] 7 and [RGaNH] 7
(R=H,Me) were performed in works [53, 111, 112]. Mixed element heptamer
clusters [(HM) k (HM ) l (NH) 7 ] (M, M = B, Al, Ga and k + l = 7) and
[(HGa) 7 (YH) m (Y H) n ] (Y,Y = N, P, As and m + n = 7) have been computationally
studied by Mohajeri and Ebadi [113].
213
Fig. 6.6 Structure of needle-shaped heptamer on the example [HAlPSiMe 2 (C i PrMe 2 )] 7 [108]
(a) side view and (b) top view and (c) structure of the oxidized decamer [ClAlPO 3 Me] 10 [109].
Aluminum atoms are colored in pink, phosphorus in orange, silicon in yellow, chlorine in green,
oxygen in red, and carbon in gray. Hydrogen atoms are omitted for clarity
[HAlNCH 2 (1-Ad)] 7 was unsuccessful. Full substitution was not achieved, resulting
in compound [F 0.32 H 0.68 AlNCH 2 (1-Ad)] 7 [82].
The needle-shaped structure of oxidized decamer [ClAlPO 3 Me] 10 (Fig. 6.6c)
is also noteworthy [109], since it reflects the stability of needle-shaped structural
motif.
Needle-shaped heptamer with Ga 7 N 7 core [PhGaNMe] 7 was synthesized by
thermolysis of [Ph 2 GaNHMe] 2 and structurally characterized [110]. The reactivity
leading to tetrameric and heptameric Ga-N-based compounds with adamantanetype cores is presented in Scheme 6.6 [104]. Decomposition of adamantane-type
amido-imino compound [(GaPh) 7 (NHMe) 4 (NMe) 5 ] at 340 ◦ C leads to heptamer
[PhGaNMe] 7 , as indicated by chemical ionization mass spectrometry studies [104].
Computational studies of heptamer compounds [HAlNH] 7 and [RGaNH] 7
(R=H,Me) were performed in works [53, 111, 112]. Mixed element heptamer
clusters [(HM) k (HM ) l (NH) 7 ] (M, M = B, Al, Ga and k + l = 7) and
[(HGa) 7 (YH) m (Y H) n ] (Y,Y = N, P, As and m + n = 7) have been computationally
studied by Mohajeri and Ebadi [113].