کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5393984 1505602 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The structure and large nonlinear optical properties of a novel octupolar electride Li@36Adz
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
The structure and large nonlinear optical properties of a novel octupolar electride Li@36Adz
چکیده انگلیسی


- The original and interesting concept of octupolar electride (Li@36Adz) is first proposed for nonlinear optics.
- Li@36Adz has a very large first hyperpolarizability, up to 1787×10-30 esu at the restricted open-shell second-order Møller-Plesset (ROMP2) level.
- Due to the low ionization potential (1.84 eV), Li@36Adz can be seen as superalkalies.

Based on the synthesized H@36Adz (36Adz = 36 adamanzane), a new class of three-dimensional (3D) octupolar molecule Li@36Adz with electride characteristics is first designed and studied with theoretical tools, in which the electron of the encapsulated Li atom is extruded from the cage of 36Adz forming diffused excess electron. Due to S4 symmetry, Li@36Adz only has the octupolar hyperpolarizability (βJ=3) up to 1787 × 10−30 esu at the restricted open-shell second-order Møller-Plesset (ROMP2) level, whose β is about 1787 times more than that (1 × 10−30 esu) of its analogue (H@36Adz). Interestingly, we find that both Li@36Adz has a very low ionization potential (1.84 eV) which can be seen as superalkalies. The present investigations will enrich the concept of 3D octupolar molecules for high-performance NLO materials and offer a method to construct superalkalies.

The original and interesting concept of octupolar electride (Li@36Adz) is proposed for nonlinear optics. And this class of molecules exhibits giant first hyperpolarizability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational and Theoretical Chemistry - Volume 1023, 1 November 2013, Pages 99-103
نویسندگان
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