You should make the calculations to ensure that your model can exist.
sir i have not calculated any thing only i have design the model please check it sir thank you.
Please provide the structure you have calculated. In general, the quantum chemical calculations give the local energy minimum, so your calculated structure is likely to exist.
thank you sir sir I have made a 3d model in google sketchup so can you please check it that is this kind of carbor allotrope can exist or not. and please also tell how to so you the model thank you sir